BIOLOGY CHAPTER 10 HOMEOSTASIS. 1. Homeostasis is defined as the maintenance of a constant internal environment.
|
|
- Sara Cunningham
- 7 years ago
- Views:
Transcription
1 BIOLOGY CHAPTER 10 HOMEOSTASIS 1. Homeostasis is defined as the maintenance of a constant internal environment. 2. The cells in our body are bathed in fluid (blood, lymph and tissue fluid). These fluids make up the internal environment. 3. This environment must be kept constant for healthy functioning of the body cells. 4. Homeostasis involves constant adjustments by various organs working together to achieve this internal stability. 5. The control center of homeostasis is in the brain. The liver, kidneys, skin, lungs and hormones also play important roles in homeostasis. 6. Homeostasis involves: a. A change in the internal environment (stimulus) b. A receptor that can detect the stimulus c. A corrective mechanism a system that return the conditions to normal, and d. Concept of control by negative feedback. (A correction/change in the opposite direction, hence the term negative). 7. Examples of homeostatic processes are: a. Carbon dioxide level: Changes in the carbon dioxide concentration of blood automatically affect the rate of breathing. b. Water balance: The urine composition is adjusted to ensure that the osmotic pressure of blood remains constant. c. Regulation of body temperature: This is kept at about 37 C. The skin plays an important role in this homeostatic control. 1
2 8. Skin A. THE HUMAN SKIN The skin is made up of a thin outer layer, the epidermis and an inner thicker layer, the dermis. B. Functions of the skin structure Structure Description Function 1. Epidermis a) Horny layer (cornified layer) Outer layer, made up of dead keratinised cells. b) Granular layer Layer of cells that begin to die due to the increasing distance from the blood supply of the dermis. c) Malpighian layer Made up of living cells and pigmented with melanin. Makes the skin waterproof hence reducing the water loss. Protects against mechanical, thermal and chemical injury. Protects against invasion by germs. Replaces dead cell in the cornified layer. Produces new cells. Pigment melanin prevents entry of harmful ultraviolet rays. 2
3 2. Dermis a) Hair Made up of dead cells and keratin. Projects from the hair follicle. b) Erector muscle Attached to the base of each hair follicle. Traps air in order to form an insulating layer when cold. May act as a camouflage. Contracts to make hair stand upright. c) Sebaceous gland Opens into the hair follicle. Secretes sebum (oil) for waterproofing skin and keep hair supple. d) Sweat glands Surrounded by blood capillaries and connected to sweat pores by sweat ducts. e) Sense receptors Nerve endings found in the epidermis and dermis. Receptors connected to nerve fibres. f) Nerve fibres Lead to and from the central nervous system (CNS). Excrete sweat. When sweat evaporates, it cools the body. Detect sensations of touch, pain, pressure, or temperature changes in the external environment. Carry impulses from the sense organs to the CNS. g) Blood vessels Network of capillaries. Arterioles dilate or constrict, to supply more or less blood to the capillaries in the skin for body temperature control. h) Adipose tissue Layers of fat cells found at the base of the dermis. Provides insulation against cold. Store energy in the form of fat. [Note: Another important role played by the skin is the of vitamin D when exposed to sunlight. Vitamin D is necessary for the absorption of calcium to form strong bones and teeth.] 3
4 9. Regulation of body temperature The thermo-receptors in the skin detect the change in the temperature. Messages are sent to hypothalamus in the brain. Hypothalamus is the temperature control center. Summary of homeostatic process that regulates the body temperature: A. Regulation of body temperature on a HOT DAY. Blood temperature returns to normal levels Decreased metabolic rate reduces heat Stimulus Blood and skin temperatures rise Corrective Mechanism Increase in heat loss and decrease in heat Negative feedback Receptor Temperature receptors detect changes and send nerve impulses to the brain Hypothalamus of brain is stimulated and sends nerve impulses to relevant body parts Corrective mechanism: 1. Vasodilation: widening of arterioles in the skin allows more warm blood to flow through the capillaries near the surface of the skin resulting in more heat lost by radiation. 2. Sweat glands become active and cause sweating. Evaporation of sweat brings about heat loss and cools body. 3. Hair lies flat because the erector muscles relax. The layer of air trapped is very thin. Thus heat is easily lost from the body by conduction and convection. 4
5 B. Regulation of body temperature on a COLD DAY. Blood temperature returns to normal levels Increased metabolic rate increases heat Stimulus Blood and skin temperatures fall Negative feedback Corrective Mechanism Decrease in heat loss and increase in heat Receptor Temperature receptors detect changes and send nerve impulses to the brain Hypothalamus of brain is stimulated and sends nerve impulses to relevant body parts Corrective mechanism: 1. Vasoconstriction: Narrowing of arterioles in the skin reduces the amount of warm blood flowing near the surface of the skin so resulting in reduced heat loss by radiation. 2. Sweat glands are less active thus reducing sweating. Less evaporation resulting in reduced heat loss from body 3. Erector muscles contract causing hairs to stand on end. The layer of air trapped between the hairs become thicker. Since air is a poor conductor of heat, it insulates the body. 5
The Integumentary System Dr. Ali Ebneshahidi
The Integumentary System Dr. Ali Ebneshahidi The Skin The integument system consists of the skin (cutaneous membrane) and its accessory organs. The skin is composed of three layers of tissue: the outer
More informationTHE STRUCTURE AND FUNCTION OF THE SKIN
THE STRUCTURE AND FUNCTION OF THE SKIN The skin is an amazing structure; it is the largest organ of the body containing many structures such as capillaries, lymphatic vessels, nerve endings, glands and
More informationEngage: Brainstorming Body Systems. Record the structures and function of each body system in the table below.
Engage: Brainstorming Body s Record the structures and function of each body system in the table below. Body Nervous Circulatory Excretory Immune Digestive Respiratory Skeletal Muscular Endocrine Integumentary
More informationIntegumentary System Digestive System. Outline. Integumentary System 11/4/2008. Week 11 BA & BP November 4, 2008 Nadia Arora, ND
Integumentary System Digestive System Week 11 BA & BP November 4, 2008 Nadia Arora, ND Outline Integumentary system and body membranes Types of body membranes and their function General structure and main
More informationCHAPTER 6: INTEGUMENTARY SYSTEM. 1. Explain why the skin is called the cutaneous membrane.
OBJECTIVES: 1. Explain why the skin is called the cutaneous membrane. 2. Name the layers of the skin, describe the structure (tissues) of each, and name a general function of each. 3. Discuss the four
More informationTwo main classes: Epithelial Connective (synovial) Epithelial. Cutaneous Mucous Serous
Two main classes: Epithelial Connective (synovial) Epithelial Cutaneous Mucous Serous Epithelial Membranes = sheet of epithelia + connective tissue base 1. Cutaneous membrane: outer skin layer (stratified
More informationORGAN SYSTEMS OF THE BODY
ORGAN SYSTEMS OF THE BODY DEFINITIONS AND CONCEPTS A. Organ a structure made up of two or more kinds of tissues organized in such a way that they can together perform a more complex function that can any
More informationSkeletal, Muscular, and Integumentary Systems
Chapter 36 Skeletal, Muscular, and Integumentary Systems Section 36 1 The Skeletal System (pages 921 925) This section describes the skeletal system and its functions. Introduction (page 921) 1. What forms
More informationUNIT 3 : MAINTAINING DYNAMIC EQUILIBRIUM
BIOLOGY - 2201 UNIT 3 : MAINTAINING DYNAMIC EQUILIBRIUM What happens to your body as you run? Breathing, heart rate, temperature, muscle pain, thirsty... Homeotasis Homeostasis is the process of maintaining
More informationAnatomy and Physiology
Learning Activities It is important that you do not lecture all of the time. If you employ a variety of teaching styles, your students will stay focused better and they will find it easier to process the
More informationName Class Date Laboratory Investigation 24A Chapter 24A: Human Skin
Name Class Date Laboratory Investigation 24A Chapter 24A: Human Skin Human Anatomy & Physiology: Integumentary System You may refer to pages 386-394 in your textbook for a general discussion of the integumentary
More informationThick and Thin Evaluating layers of the skin
Overview Thick and Thin Evaluating layers of the skin Understanding the layered structure of skin is essential to understanding how it functions. The focus of this lesson is for students to discover and
More informationWater Homeostasis. Graphics are used with permission of: Pearson Education Inc., publishing as Benjamin Cummings (http://www.aw-bc.
Water Homeostasis Graphics are used with permission of: Pearson Education Inc., publishing as Benjamin Cummings (http://www.aw-bc.com) 1. Water Homeostasis The body maintains a balance of water intake
More informationParamedic Program Anatomy and Physiology Study Guide
Paramedic Program Anatomy and Physiology Study Guide Define the terms anatomy and physiology. List and discuss in order of increasing complexity, the body from the cell to the whole organism. Define the
More informationFUNCTIONS OF THE SKIN
FUNCTIONS OF THE SKIN Skin is the largest organ of the body. The average adult has 18 square feet of skin which account for 16% of the total body weight. Skin acts as a physical barrier for you to the
More information12.1: The Function of Circulation page 478
12.1: The Function of Circulation page 478 Key Terms: Circulatory system, heart, blood vessel, blood, open circulatory system, closed circulatory system, pulmonary artery, pulmonary vein, aorta, atrioventricular
More informationTemperature Homeostasis (thermoregulation)
Homeostasis literally means same state and it refers to the process of keeping the internal body environment in a steady state, when the external environment is changed. The importance of this cannot be
More informationEndocrine System: Practice Questions #1
Endocrine System: Practice Questions #1 1. Removing part of gland D would most likely result in A. a decrease in the secretions of other glands B. a decrease in the blood calcium level C. an increase in
More informationYour Skin. Name: Your Largest Organ
Your Largest Organ What is the largest organ in your body? Your heart? It is the largest muscle in your body, but you do have larger organs. Your brain? The brain inside your skull is pretty big, but it's
More informationTHE HUMAN BODY SYSTEMS
Name Period Date THE HUMAN BODY SYSTEMS System Function Diagram Major Organs Digestive 1. take in food (ingestion) 2. digest food into smaller molecules and absorb nutrients 3. remove undigestable food
More informationChapter 12. Temperature Regulation. Temperature Regulation. Heat Balance. An Overview of Heat Balance. Temperature Regulation. Temperature Regulation
Chapter 12 Body core temperature regulation Critical for: Cellular structures Metabolic pathways Too high Protein structure of cells destroyed Too low Slowed metabolism Cardiac arrhythmias Homeothermic
More informationHuman Anatomy & Physiology I with Dr. Hubley. Practice Exam #2
Human Anatomy & Physiology I with Dr. Hubley Practice Exam #2 For questions 1 through 3, select your answers from the following responses: a. stratified squamous epithelium b. reticular connective tissue
More informationAnimal Tissues. I. Epithelial Tissue
Animal Tissues There are four types of tissues found in animals: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. In this lab you will learn the major characteristics of each tissue
More informationReavis High School Anatomy and Physiology Curriculum Snapshot
Reavis High School Anatomy and Physiology Curriculum Snapshot Unit 1: Introduction to the Human Body 10 days As part of this unit, students will define anatomy, physiology, and pathology. They will identify
More information2161-1 - Page 1. Name: 1) Choose the disease that is most closely related to the given phrase. Questions 10 and 11 refer to the following:
Name: 2161-1 - Page 1 1) Choose the disease that is most closely related to the given phrase. a disease of the bone marrow characterized by uncontrolled production of white blood cells A) meningitis B)
More informationQuestions on The Nervous System and Gas Exchange
Name: Questions on The Nervous System and Gas Exchange Directions: The following questions are taken from previous IB Final Papers on Topics 6.4 (Gas Exchange) and 6.5 (Nerves, hormones and homeostasis).
More informationMelanoma The Skin Understanding Cancer
Melanoma A form of cancer that begins in melanocytes (cells that make the pigment melanin). It may begin in a mole (skin melanoma), but can also begin in other pigmented tissues, such as in the eye or
More informationChetek-Weyerhaeuser High School
Chetek-Weyerhaeuser High School Anatomy and Physiology Units and Anatomy and Physiology A Unit 1 Introduction to Human Anatomy and Physiology (6 days) Essential Question: How do the systems of the human
More informationDiagram 2(i): Structure of the Neuron
Diagram 2(i): Structure of the Neuron Generally speaking, we can divide the nervous system into different parts, according to location and function. So far we have mentioned the central nervous system
More informationBIO 137: CHAPTER 1 OBJECTIVES
BIO 137: CHAPTER 1 OBJECTIVES 1. Define the terms anatomy and physiology, and explain their relationship using an example of a human structure with its corresponding function. A. ANATOMY = the study of
More informationIntroduction to Animals
Introduction to Animals Unity and Diversity of Life Q: What characteristics and traits define animals? 25.1 What is an animal? WHAT I KNOW SAMPLE ANSWER: Animals are different from other living things
More informationNervous System: PNS and CNS
Nervous System: PNS and CNS Biology 105 Lecture 10 Chapter 8 Outline I. Central Nervous System vs Peripheral Nervous System II. Peripheral Nervous System A. Somatic Nervous System B. Autonomic Nervous
More informationIntroduction to Anatomy and Physiology: Tissues and Integumentary System. Biology 105 Lecture 7 Chapter 4
Introduction to Anatomy and Physiology: Tissues and Integumentary System Biology 105 Lecture 7 Chapter 4 Outline I. Tissues A. Epithelial B. Connective C. Muscle D. Nervous tissues II. Cell-to-cell contact
More informationChapter 5: The Integumentary System. What are the structures and functions of the integumentary system?
Chapter 5: The Integumentary System What are the structures and functions of the integumentary system? 1 Size of the Integument The integument is the largest system of the body: 16% of body weight 1.5
More informationBody Temperature Regulation
Body Temperature Regulation Amelyn R. Rafael, MD In man, the deep body temperature may fluctuate 1 degree Centigrade in daily activity cycles Lowest in the morning and reaches a peak in late evening The
More informationThe digestive system eliminated waste from the digestive tract. But we also need a way to eliminate waste from the rest of the body.
Outline Urinary System Urinary System and Excretion Bio105 Lecture 20 Chapter 16 I. Function II. Organs of the urinary system A. Kidneys 1. Function 2. Structure III. Disorders of the urinary system 1
More informationBefore you know about your future see your past before improving your future hair see what has been and is the state of your hair now Ravi Bhanot
Chapter 1 All you need to know about hair almost Before you know about your future see your past before improving your future hair see what has been and is the state of your hair now Ravi Bhanot Typically
More informationBody Heat and Temperature Regulation
LECTURE 8 Body Heat and Temperature Regulation Homeotherm- warm blooded (mammals and birds) Poikilotherm- cold blooded (reptiles and amphibians) I. Body Temperature (Reece Table 11.1 p 335) A. Gradients
More informationBlood Pressure Regulation
Blood Pressure Regulation Graphics are used with permission of: Pearson Education Inc., publishing as Benjamin Cummings (http://www.aw-bc.com) Page 1. Introduction There are two basic mechanisms for regulating
More informationPhysiology Chapter 1 Lecture
Physiology Chapter 1 Lecture I. Anatomy and Physiology - structure and function. *many subdivisions in both areas. See Table 1.1, page 2 *structure and function are interrelated, the structure often determines
More informationApproved for use September 2015 August 2016 (VERSION 2 ISSUED 16 OCTOBER 2015) Guidance
Assignment brief Qualification Unit code/title AM20530 VTCT Level 2 Certificate in Hairdressing and Beauty Therapy (VRQ) UV21582 Hair and beauty science Approved for use September 2015 August 2016 (VERSION
More informationANSWERS & MARK SCHEMES. Statement Ectotherm Endotherm
QUESTIONSHEET 1 Statement Ectotherm Endotherm Require metabolic heat to keep warm ü ü Require external heat of sun to keep warm ü Applies only to mammals All possess sweat glands All have thermoregulatory
More informationChapter 48. Nutrients in Food. Carbohydrates, Proteins, and Lipids. Carbohydrates, Proteins, and Lipids, continued
Carbohydrates, Proteins, and Lipids The three nutrients needed by the body in the greatest amounts are carbohydrates, proteins, and lipids. Nutrients in Food All of these nutrients are called organic compounds,
More informationTHE SENSE OF TOUCH. Roope Raisamo and Jukka Raisamo
THE SENSE OF TOUCH Roope Raisamo and Jukka Raisamo Tampere Unit for Computer-Human Interaction School of Information Sciences University of Tampere, Finland Outline for the talk Introduction to the sense
More informationBiology 224 Human Anatomy and Physiology II Week 8; Lecture 1; Monday Dr. Stuart S. Sumida. Excretory Physiology
Biology 224 Human Anatomy and Physiology II Week 8; Lecture 1; Monday Dr. Stuart S. Sumida Excretory Physiology The following ELEVEN slides are review. They will not be covered in lecture, but will be
More informationWhat Alcohol Does to the Body. Chapter 25 Lesson 2
What Alcohol Does to the Body Chapter 25 Lesson 2 Short-Term Effects of Drinking The short-term term effects of alcohol on the body depend on several factors including: amount of alcohol consumed, gender,
More informationBody Temperature Regulation. Amelyn R. Rafael, MD
Body Temperature Regulation Amelyn R. Rafael, MD In man, the deep body temperature may fluctuate 1 degree Centigrade in daily activity cycles Lowest in the morning and reaches a peak in late evening The
More informationFunctions of Blood System. Blood Cells
Functions of Blood System Transport: to and from tissue cells Nutrients to cells: amino acids, glucose, vitamins, minerals, lipids (as lipoproteins). Oxygen: by red blood corpuscles (oxyhaemoglobin - 4
More informationVascular System The heart can be thought of 2 separate pumps from the right ventricle, blood is pumped at a low pressure to the lungs and then back
Vascular System The heart can be thought of 2 separate pumps from the right ventricle, blood is pumped at a low pressure to the lungs and then back to the left atria from the left ventricle, blood is pumped
More informationIntroduction to Animal Systems
Human Body Systems Introduction to Animal Systems Recurring Themes in Biology 1. Correlation between structure and function( seen at many levels) 2. Life is organized at many levels from Smallest ----
More informationHistology. Epithelial Tissue
Histology Epithelial Tissue Epithelial Tissue Lines internal and external body surfaces Forms glands Epithelial Tissue Little extracellular matrix Attached on one side Avascular Basement membrane Apical
More informationFunctions INTEGUMENTARY SYSTEM. Protective Functions. Functions in Sensation. Functions in Excretion. Functions in Temperature Regulation
Functions INTEGUMENTARY SYSTEM Anatomy and Physiology Text and Laboratory Workbook, Stephen G. Davenport, Copyright 2006, All Rights Reserved, no part of this publication can be used for any commercial
More informationNorth Bergen School District Benchmarks
Grade: 10,11, and 12 Subject: Anatomy and Physiology First Marking Period Define anatomy and physiology, and describe various subspecialties of each discipline. Describe the five basic functions of living
More informationAnatomy & Physiology Bio 2401 Lecture. Instructor: Daryl Beatty Day 1 Intro to Lecture 1
Anatomy & Physiology Bio 2401 Lecture Instructor: Daryl Beatty Day 1 Intro to Lecture 1 Introduction: Daryl Beatty M.S. Microbiology 28 Years Dow, Research & TS&D. Family BC since 2007 More importantly:
More informationANSWER KEY. Bones, Muscles, and Skin
Bones, Muscles, and Skin Chapter Project Worksheet 1 1. It must be able to grasp, lift, and release; it must be activated by a pulled cord or string; it must spring back when the cord is released. 2. The
More informationHuman Anatomy & Physiology I with Dr. Hubley. Practice Exam 1
Human Anatomy & Physiology I with Dr. Hubley Practice Exam 1 1. Which definition is the best definition of the term gross anatomy? a. The study of cells. b. The study of tissues. c. The study of structures
More informationTHERAPEUTIC USE OF HEAT AND COLD
THERAPEUTIC USE OF HEAT AND COLD INTRODUCTION Heat and cold are simple and very effective therapeutic tools. They can be used locally or over the whole body, and the proper application of heat and cold
More informationChapter 15 Anatomy and Physiology Lecture
1 THE AUTONOMIC NERVOUS SYSTEM Chapter 15 Anatomy and Physiology Lecture 2 THE AUTONOMIC NERVOUS SYSTEM Autonomic Nervous System (ANS) regulates the activity of smooth muscles, cardiac muscles, and certain
More informationThe Circulatory System. Chapter 17 Lesson 1
The Circulatory System Chapter 17 Lesson 1 Functions of the Circulatory System Your circulatory system maintains an internal environment in which all the cells in your body are nourished. As your heart
More informationChapter 5 The Integumentary System Lecture Outline
Chapter 5 The Integumentary System Lecture Outline Integument Composition 1. Cutaneous membrane A. Epidermis B. Dermis 2. Accessory organs A. Hair B. Exocrine glands C. Nails Functions 1. Protection 2.
More informationHuman Body Systems Project By Eva McLanahan
Human Body Systems Project By Eva McLanahan Students will work in groups to research one of the eleven body systems as found in Holt, Rinehart, and Winston Modern Biology (2002). Research will focus on
More informationChapter 26. Metabolic Rate, Body Heat, and Thermoregulation
Chapter 26 Metabolic Rate, Body Heat, and Thermoregulation Metabolic Rate the amount of energy liberated in the body in a given period of time (kcal/hr or kcal/day) calorimeter a closed chamber with water
More informationBiology 2401 - Anatomy and Physiology I Exam 1 notes - Introduction, Cell and Tissue Structure
Biology 2401 - Anatomy and Physiology I Exam 1 notes - Introduction, Cell and Tissue Structure Two major principles in study of animal bodies: (humans, like other living organisms are product of evolutionary
More informationExchange solutes and water with cells of the body
Chapter 8 Heart and Blood Vessels Three Types of Blood Vessels Transport Blood Arteries Carry blood away from the heart Transport blood under high pressure Capillaries Exchange solutes and water with cells
More informationThe role of negative -ION in the improvement of our health
What are IONS and where do they come from? IONS are particles with a positive or a negative electrical charge The percentage and number of +IONS and -IONS change depending on the time and place. IONS can
More informationThe Integumentary System
5 The Integumentary System FOCUS: The integumentary system consists of the skin, hair, nails, and a variety of glands. The epidermis of the skin provides protection against abrasion, ultraviolet light,
More informationProvided by the American Venous Forum: veinforum.org
CHAPTER 1 NORMAL VENOUS CIRCULATION Original author: Frank Padberg Abstracted by Teresa L.Carman Introduction The circulatory system is responsible for circulating (moving) blood throughout the body. The
More informationEssentials of Human Anatomy & Physiology. Chapter 15. The Urinary System. Slides 15.1 15.20. Lecture Slides in PowerPoint by Jerry L.
Essentials of Human Anatomy & Physiology Elaine N. Marieb Seventh Edition Chapter 15 The Urinary System Slides 15.1 15.20 Lecture Slides in PowerPoint by Jerry L. Cook Functions of the Urinary System Elimination
More informationAcne (Acne Vulgaris) A common type of bacteria that lives on the skin, known as Propionibacterium acnes, sometimes
Acne (Acne Vulgaris) Acne, clinically known as acne vulgaris, is the most common skin disease. It affects 85% of teenagers, some as young as 12, and often continues into adulthood. It is also called pimples,
More informationGround substance is the component of connective tissue between the cells and the fibers
Connective Tissues Directions: Insert and install your Interactions: Foundations CD. a. Click the "Contents" button. b. Open the Tissue Level of Organization file. c. Click on Anatomy Overviews. d. Work
More informationIntegration and Coordination of the Human Body. Nervous System
I. General Info Integration and Coordination of the Human Body A. Both the and system are responsible for maintaining 1. Homeostasis is the process by which organisms keep internal conditions despite changes
More information7 Answers to end-of-chapter questions
7 Answers to end-of-chapter questions Multiple choice questions 1 B 2 B 3 A 4 B 5 A 6 D 7 C 8 C 9 B 10 B Structured questions 11 a i Maintenance of a constant internal environment within set limits i Concentration
More informationName: Class: Date: 10. Some substances, when exposed to visible light, absorb more energy as heat than other substances absorb.
Name: Class: Date: ID: A PS Chapter 13 Review Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 1. In all cooling
More informationMINI - COURSE On TEMPERATURE CONTROL IN THE NEWBORN
MINI - COURSE On TEMPERATURE CONTROL IN THE NEWBORN Instructions: Read each sheet and answer any questions as honestly as possible The first sheets have four questions to allow you to give your thoughts
More informationCells, tissues and organs
Chapter 8: Cells, tissues and organs Cells: building blocks of life Living things are made of cells. Many of the chemical reactions that keep organisms alive (metabolic functions) take place in cells.
More information1. DEFINITION OF PHYSIOLOGY. Study of the functions of the healthy human body. How the body works. Focus on mechanisms of action.
1. DEFINITION OF PHYSIOLOGY Study of the functions of the healthy human body. How the body works. Focus on mechanisms of action. Anatomy & Physiology: inseparable & complementary They are complementary
More informationIntegumentary System CHAPTER. Overview CHAPTER SUMMARY
CHAPTER 5 The Integumentary System Overview CHAPTER SUMMARY Skin, the largest organ in the body, forms the integumentary system in conjunction with its accessory structures. The skin consists of two layers:
More informationSection B: Epithelial Tissue 1. Where are epithelial tissues found within the body? 2. What are the functions of the epithelial tissues?
Tissue worksheet Name Section A: Intro to Histology Cells are the smallest units of life. In complex organisms, cells group together with one another based on similar structure and function to form tissues.
More informationWhat Each Vitamin & Mineral Does In Your Body. Vitamin A
What Each Vitamin & Mineral Does In Your Body Vitamin A Prevents skin disorders, such as acne, wrinkling and age spots. Enhances the immune system protects against colds, flu, and infections to kidney,
More informationHuman Body Scavenger Hunt Activity
Name: Activity Materials: Question worksheet (pages 2-3) 16 Fact Cards (pages 4-8) Tape, Scissors, Classroom Preparation: Print the fact cards on card stock or brightly-colored paper and cut them out.
More informationChapter 23. Urine Formation I Glomerular Filtration
Chapter 23 Urine Formation I Glomerular Filtration Urine Formation I: Glomerular Filtration kidneys convert blood plasma to urine in three stages glomerular filtration tubular reabsorption and secretion
More informationChapter 15. Autonomic Nervous System (ANS) and Visceral Reflexes. general properties Anatomy. Autonomic effects on target organs
Chapter 15 Autonomic Nervous System (ANS) and Visceral Reflexes general properties Anatomy Autonomic effects on target organs Central control of autonomic function 15-1 Copyright (c) The McGraw-Hill Companies,
More informationThe chemical reactions inside cells are controlled by enzymes. Cells may be specialised to carry out a particular function.
12.1 What are animals and plants built from? All living things are made up of cells. The structures of different types of cells are related to their functions. to relate the structure of different types
More informationThe skin both transmits and blocks communication
Skin Physiology The skin both transmits and blocks communication 1. A brief view of the anatomy 2. Sensors in the skin 3. The organ of touch 4. The language of skin 5. Barrier to the world 6. When the
More informationChapter 40: Basic Principles of Animal Form and Function
Name Period Concept 40.1 Animal form and function are correlated at all levels of organization 1. Animals need to exchange materials with their environment. This process occurs as substances dissolved
More informationMARK SCHEME for the May/June 2012 question paper for the guidance of teachers 5090 BIOLOGY. 5090/22 Paper 2 (Theory), maximum raw mark 80
www.xtremepapers.com UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS GCE Ordinary Level MARK SCHEME for the May/June 2012 question paper for the guidance of teachers 5090 BIOLOGY 5090/22 Paper 2 (Theory),
More informationClass 10 NCERT Science Text Book Chapter 7 Control and Coordination
Class 10 NCERT Science Text Book Chapter 7 Control and Coordination Question 1: What is the difference between a reflex action and walking? A reflex action is a rapid, automatic response to a stimulus.
More informationSTRATEGIES TO DEAL WITH THE HEAT IN COMPETITION HORSES
STRATEGIES TO DEAL WITH THE HEAT IN COMPETITION HORSES The Normal Horse Heart Rate: 28-44 bpm Respiratory Rate: 8-16 bpm Dr Anushka Chaku BSc BVMS MANCVS Temperature: 37.0-38.5 C Membrane colour: pink,
More informationBiology Slide 1 of 38
Biology 1 of 38 2 of 38 35-2 The Nervous System What are the functions of the nervous system? 3 of 38 35-2 The Nervous System 1. Nervous system: a. controls and coordinates functions throughout the body
More informationMark Scheme (Results) November 2011. GCSE Biology 5BI1H/01
Mark Scheme (Results) November 2011 GCSE Biology 5BI1H/01 Edexcel is one of the leading examining and awarding bodies in the UK and throughout the world. We provide a wide range of qualifications including
More informationFundamentals of Anatomy & Physiology Course Outline, Objectives and Accreditation Information
201 Webster Building 3411 Silverside Road Wilmington, DE 19810 Phone: 1-888-658-6641 Fax: 1-302-477-9744 learn@corexcel.com www.corexcel.com Course Outline, Objectives and Accreditation Information Chapter
More informationInvestigating the Human Body On-site student activities: Years 7-8 Investigating the Human Body On-site student activities Years 7 8
Investigating the Human Body On-site student activities Years 7 8 Student activity (and record) sheets have been developed with alternative themes for students to use as guides and focus material during
More informationPage 1. Introduction The blood vessels of the body form a closed delivery system that begins and ends at the heart.
Anatomy Review: Blood Vessel Structure & Function Graphics are used with permission of: Pearson Education Inc., publishing as Benjamin Cummings (http://www.aw-bc.com) Page 1. Introduction The blood vessels
More informationWhat role does the nucleolus have in cell functioning? Glial cells
Nervous System Lab The nervous system of vertebrates can be divided into the central nervous system, which consists of the brain and spinal cord, and the peripheral nervous system, which contains nerves,
More informationManaging Heat Stress in Poultry
Managing Heat Stress in Poultry Amy E. Halls, Monogastric Nutritionist Shur-Gain, Nutreco Canada Inc. Heat stress has several serious and economical effects on poultry. In broilers and turkeys, it can
More informationLesson Aim To explain the human body at a microscopic level, including the structure and function of cells, tissues and membranes.
LESSON 1. CELLS & TISSUES Lesson Aim To explain the human body at a microscopic level, including the structure and function of cells, tissues and membranes. THE CELL All living matter is composed of functional
More informationFight or Flight Response: Play-by-Play
One of the most remarkable examples of cell communication is the fight or flight response. When a threat occurs, cells communicate rapidly to elicit physiological responses that help the body handle extraordinary
More informationS.M.A.R.T.box. Muscular System The Inner Athlete Teacher s Guide CURRICULUM MEDIA GROUP. Standards-based MediA Resource for Teachers
CURRICULUM MEDIA GROUP S.M.A.R.T.box Standards-based MediA Resource for Teachers TM Muscular System The Inner Athlete Teacher s Guide 33119 A DIVISION OF FILMS MEDIA GROUP INTRODUCTION This Teacher s Guide
More informationReproductive System & Development: Practice Questions #1
Reproductive System & Development: Practice Questions #1 1. Which two glands in the diagram produce gametes? A. glands A and B B. glands B and E C. glands C and F D. glands E and F 2. Base your answer
More informationU N IT 10 NE RVOUS SYS TE M REVIEW 1. Which of the following is controlled by the somatic nervous system? A. rate of heartbeat B.
U N IT 10 NE RVOUS SYS TE M REVIEW 1. Which of the following is controlled by the somatic nervous system? A. rate of heartbeat B. contraction of skeletal muscles C. increased blood flow to muscle tissue
More information