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13 Cards in this Set
- Front
- Back
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Function |
Deliver oxygen amd nutrients Remove waste |
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Features of the heart |
A pump Blood transport in capillaries arteries and veins Capillaries are exchange beds |
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Names of surfaces of the heart |
Pericardium - smooth outer Myocardium - muscle Endocardium- smooth inner |
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Description of heart muscle cells |
Y shaped Self contracting Have pace maker Repoloisation takes longer to prevent cramp |
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Flow of blood |
Inferior vena cava Superior vena cava Right atrium Tricuspid valve Right ventricle Pulmonary valve Pulmonary artery |
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Second flow of blood |
Pulmonary vein Left atrium Bicuspid valve Left ventricle One way semi lunar valve Aorta Aortic arch |
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Cardiac cycle |
Involves 2 pumps Systole- contract to eject blood Diastole- relaxes and fills with blood Blood flows from high to low pressure |
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Names of the electrical conduction of the heart |
As node (pace maker) Av node Bundle of his Bundle branches Purkinje network |
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Names of the blood supply to the heart muscles |
Right coronary artery Left coronary artery Circumflex |
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Baroreceptors |
Monitor bp Found in the aortic arch,caratoid arteries and right atrium Contain stretch receptors Send signals to brain if any changes occur |
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Compare arteries and veins |
Arteries: Blood away from heart Thick walls No valves Higher pressure Small lumen Veins Return blood to heart Thinner walls Have valves Lower pressure Large lumen |
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Describe capillaries |
Link arteries to veins Facilitate all exchanges 1 cell thick walls Rapid diffusion pathway |
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Venus return |
Skeletal muscles contract Breathing also same Valves prevent backflow |
