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29 Cards in this Set
- Front
- Back
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right atrium (RA) & left atrium (LA)
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the superior chambers of the heart |
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atrial septum |
the wall between the atria (pl. of atrium) of the heart |
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right ventricle (RV) & left ventricle (LV) |
the two inferior chambers of the heart |
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ventricular septum |
the wall between the ventricles of the heart |
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Which chambers of the heart collect blood from the body, and pump it to the heart? |
the right chambers |
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where do the right chambers of the heart pump blood? |
from the body to the lungs |
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what do the left chambers of the heart do? |
collect the blood from the lungs to pump it the rest of the body |
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how many valves does the heart have? what is the function of the heart's valves? |
the heart has four valves that function to maintain unidirectional blood flow |
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where is the atrioventricular valve (AV) located? |
between the atria and the ventricles |
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how are the AV valves named? |
by the number of leaflets, or cusps |
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what is another name for the right AV valve and how many cusps does it have?
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the tricuspid valve has three leaflets
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what is the function of the tricuspid valve? |
to control blood flow between the RA & RV |
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which is the mitral valve, and how many cusps does it have? |
the left AV valve has two leaflets |
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what is the function of the left AV valve (aka mitral valve)? |
it controls the blood flow between the LA & the LV |
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where is the aortic valve? |
between the LV & the aorta |
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what valve is located between the RV & pulmonary artery?
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the pulmonary valve |
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what type of blood enters the superior & inferior vena cava? |
venous blood (deoxygenated) |
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where does the blood flow from the superior/inferior vena cava to? |
it flows to the right atrium |
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where does the blood flow to after it has entered the RA? what valve does it pass through? |
the blood flows from the RA to the RV through the triscuspid valve |
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when does the tricuspid valve close and why? |
it closes when the RV contracts to allow it to pump blood through the pulmonary valve |
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where does the blood flow after it passes through the pulmonary valve? |
the blood is pumped from the pulmonary valve into the pulmonary trunk |
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what are the divisions of the pulmonary trunk and where does the blood flow? |
the pulmonary trunk divides into the left and right pulmonary arteries, which serve the left and right lung (respectively) |
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what happens to the deoxygenated blood in the lungs? |
deoxygenated blood picks up oxygen, then releases carbon dioxide in the pulmonary capillaries |
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after releasing carbon dioxide in the pulmonary capillaries, where does the oxygenated blood go? |
the oxygenated blood returns through the pulmonary veins to the LA |
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which valve does the contraction of the LA force the blood through? |
contraction of the LA forces the blood through the mitral valve |
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where does the blood flow to after it is pumped through the mitral valve? |
it flows through the mitral valve into the LV |
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when does the mitral valve close and why? |
when the LV contracts to pump blood through the aortic valve |
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where does the blood flow to after passing through the aortic valve? |
the blood is pumped into the aorta |
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what happens to the blood after it is pumped into the aorta? |
it is distributed into the coronary circulation and systemic circulation |
