Circulatory System: Circulates the blood
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1 Circulatory System
2 Circulatory System: Circulates the blood
3 Circulatory System: Circulates the blood which carries the O 2 to cells
4 Heart Made of cardiac muscle, hollow, about the size of a clenched fist Contracts ~72 times/min In 1 day, the heart pumps 1800 liters. That is enough blood to fill an Olympic-sized swimming pool in a year.
5 FYI Newborn heart rate=140 beats/min First heart transplant-1967 By % success rate for heart transplants The heart may beat for several minutes after it is removed from the body
6 The inside of the heart Septum:
7 The inside of the heart Septum: (1) divides the heart in half right and left side Atrium:
8 The inside of the heart Septum: (1) divides the heart in half right and left side Atrium: (2) The upper chambers that receive the blood Ventricle:
9 The inside of the heart Septum: (1) divides the heart in half right and left side Atrium: (2) The upper chambers that receive the blood Ventricles: (2) The lower chambers which pump blood out of the heart
10 - Chordae tendinae: connect to the valve - Papillary muscle: tug on the chordae tendinae
11 - Chordae tendinae: connect to Both work together the valve to open the valves - Papillary muscle: tug on the chordae tendinae
12 The inside of the heart Valve: Septum: (1) divides the heart in half right and left side Atrium: (2) The upper chambers that receive the blood Ventricle: (2) The lower chambers which pumps blood out of the heart
13 The inside of the heart Septum: (1) divides the heart in half right and left side Atrium: (2) The upper chambers that receive the blood Ventricle: (2) The lower chambers which pumps blood out of the Valve: (4) one way opening heart
14 The inside of the heart Septum: (1) divides the heart in half right and left side Atrium: (2) The upper chambers that receive the blood Ventricle: (2) The lower chambers which pumps blood out of the heart
15 Valve: Heart has 4 valves Tricuspid valve: between right atrium and right ventricle Pulmonary valve: between right ventricle and pulmonary artery
16 Valve: Heart has 4 valves Mitral valve or Bicuspid valve: between left atrium and left ventricle Aortic valve: between left ventricle and the aorta
17 The inside of the heart
18 On a picture: Oxygenated blood is red Deoxygenated blood is blue (deoxiginated means it is carrying CO 2 )
19 The pathway of drop of blood: 1. vena cava (superior/inferior) 2. right atrium 3. right ventricle 4. pulmonary arteries (right and left) 5. capillaries in the lungs 6. pulmonary veins (right and left) 7. left atrium 8. left ventricle 9. aorta 10. body
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21 The pathway of drop of blood: 1. vena cava (superior/inferior) 2. right atrium 3. right ventricle 4. pulmonary arteries (right and left) 5. capillaries in the lungs 6. pulmonary veins (right and left) 7. left atrium 8. left ventricle 9. aorta 10. body (and heart through coronary arteries)
22 Coronary arteries: give the heart it s own O 2 Fatty tissue: for protection
23
24 Respiratory and Circulatory: So WHY are we doing the respiratory system and the circulatory system in the same unit?
25
26 Arteries, Veins and Capillaries
27 Arteries Carry blood AWAY from the heart Carry oxygenated blood (except for ) Has thick muscle layer
28 Arteries Carry blood AWAY from the heart Carry oxygenated blood (except for ) Has thick muscle layer (smooth muscle)
29 Veins ALWAYS Return blood TO the heart Carry deoxygenated blood (except for ) Contain one way valves that keep blood flowing back to the heart
30 Veins Return blood TO the heart Carry deoxygenated blood (except for ) Contain one way valves that keep blood flowing back to the heart
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32
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34 Where there is an there is a.
35 Where there is an artery there is a vein.
36 Capillaries Smallest blood vessels Red blood cells go through in single file Walls are only one cell thick
37 Capillaries Where an artery turns into a vein Exchange of molecules and nutrients happens here
38 Artery Capillaries Vein
39 What happens at the capillaries? Artery Capillaries Vein Diffusion!!
40
41 Circulation through the body Pulmonary Circulation Blood pumped from heart to lungs Left side of the heart
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43 Circulation through the body Pulmonary Circulation Blood pumped from heart to lungs left side of the heart Systemic Circulation Blood pumped from the heart to the body right side of the heart
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46 bit.php?id=33597&exhibitkeywordsraw= &TL=&A=2
47 Now to the pigs!
48 Heart Attack: When the blood supply gets cut off to the coronary arteries
49 Heart Attack Bad indigestion Squeezing or heavy pressure Nausea and vomiting Left arm pain and/or chest pain
50 Stroke: Blood clot gets stuck in one of the arteries leading to the brain
51
52 Stroke: Blood clot gets stuck in one of the arteries leading to the brain or bleeding in brain Brain cells die from lack of oxygen May cause: paralysis loss of the ability to speak loss of sight sometimes death
53
Blood vessels. transport blood throughout the body
Circulatory System Parts and Organs Blood vessels transport blood throughout the body Arteries blood vessels that carry blood AWAY from the heart Pulmonary arteries carry the deoxygenated blood from heart
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