The Circulatory System. Mrs. Queck 7 th Grade

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1 The Circulatory System Mrs. Queck 7 th Grade

2 Where the Heart is located

3 Circulatory or Cardiovascular System Circulatory System Keeps the body working by delivering oxygen to body cells and removing waste (Co2) from the cells. Removing Delivering

4 Parts of the Circulatory System The Heart - is divided into FOUR Chambers

5 Two types of Arteries Arteries start with A takes blood away!! Aorta Largest blood vessel in the heart Pulmonary Artery Carries blood containing carbon dioxide from your heart to your lungs

6 Three Types of Veins Veins start with V brings blood back to me 1. Inferior Vena Cava Where the blood enters the heart from the body. 2. Superior Vena Cava Where the blood enters the heart from the body. 3. Pulmonary Vein Carries blood-containing oxygen from your lungs to your heart.

7 Three Kinds of Blood Vessels Arteries Carries blood away from the heart Veins Carries blood back to the heart Capillaries Delivers low-oxygen blood to veins (Smallest)

8 Parts of the Blood Red Blood Cells Made in bone marrow; carries oxygen, food, and rids body of CO2 and Waste White Blood Cells Help fight disease and infection by destroying bacteria and germs that enter the body. Made in the lymph nodes

9 Parts of the Blood Platelets Help blood to clot, to prevent excess bleeding. Plasma Water portion of the blood; 55% of blood is plasma

10 Four Types of Blood Type A: 42% Accepts A and O Type B: 10% Accepts B and O Type AB: 3% Accepts AB and O Type O: 45% Universal Donor RH Factor = is the + and of the blood

11 Four Filters of the Blood 1. Liver 2. Kidneys 3. Lymph Nodes located in the neck 4. Spleen Cemetery for the red blood cells

12 Blood Disorders Blood Pressure: (Hypertension) The force or pressure developed by the heart, which acts to pump blood through the circulatory system.

13 Blood Pressure Two Distinct pressures that are measured!! Systolic: A measure of the maximum force or pressure developed in the arteries when the heart contracts Diastolic: A measure of the lowest pressure, which occur in the arteries during cardiac relaxation.

14 Blood Pressure Sphygmomanometer: An instrument used to measure blood pressure. Stethoscope: An instrument used to listen to the sounds of the heart, or listen to the flow of blood through the vessels when measuring the blood pressure.

15 Arteriosclerosis: Artery walls harden; caused by a diet high in fat and cholesterol. Causes: Smoking Diabetes High Blood Pressure High Cholesterol Overweight Arteriosclerosis

16 Diseases and Disorders of the Circulatory System Heart Attack: Stoppage in the flow of blood to the heart. Prevention: Reduce Stress Change Diet to less intake of Sodium (Salt) Eat less foods high in fat and cholesterol

17 Diseases and Disorders of the Circulatory System Anemia: Lack of red blood cells or cells that do not carry enough oxygen; may cause weakness and low energy levels. Prevention: Eat foods that are rich in Iron Treatment: Rest

18 Diseases and Disorders of the Mononucleosis: A viral infection; with symptoms of sore throat, swollen glands and fatigue. Prevention: Avoid human saliva Treatment: Bed Rest Circulatory System

19 Diseases and Disorders of the Leukemia: Abnormal white blood cells Circulatory System In time they may crowd out normal white blood cells, red blood cells, and platelets.

20 Diseases and Disorders of the Circulatory System Stroke: Happens when a cluster of blood cells blocks blood vessels in the brain. Stroke Stroke is a Brain Attack

21 Diseases and Disorders of the Circulatory System Prevention: Don t Smoke Drink in moderation (21) Get cholesterol checked Exercise 30 minutes daily Consume a low fat diet Treatment: Medication Rehabilitation

22 Diseases and Disorders of the Hemophilia: Blood does not clot properly Prevention: Circulatory System No prevention, you are born a hemophiliac Treatment: Transfusions of blood clotting factors.

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