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23 Cards in this Set
- Front
- Back
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vena cava: 1. Where does blood enter it from? 2. Is the blood high or low in oxygen in this part? 3. Where does blood go after?
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1. the body's veins 2. low/deoxygenated 3. right atrium
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right atrium: 1. Where does blood enter it from? 2. Is the blood high or low in oxygen in this part? 3. Where does blood go after this part?
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1. superior and inferior vena cavae 2. low/deoxygenated 3. right ventricle
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right ventricle: 1. Where does blood enter it from? 2. Is the blood high or low in oxygen in this part? 3. Where does blood go after this part?
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1. right atrium 2. low/deoxygenated 3. pulmonary artery
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pulmonary artery: 1. Where does blood enter it from? 2. Is the blood high or low in oxygen in this part? 3. Where does blood go after this part?
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1. right ventricle 2. low/deoxygenated 3. to lungs
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pulmonary vein: 1. Where does blood enter it from? 2. Is the blood high or low in oxygen in this part? 3. Where does blood go after this part?
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1. from lungs 2. high/oxygenated 3. left atrium
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left atrium: 1. Where does blood enter it from? 2. Is the blood high or low in oxygen in this part? 3. Where does blood go after this part?
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1. pulmorary veins 2. high/ oxygenated 3. left ventricle
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left ventricle: 1. Where does blood enter it from? 2. Is the blood high or low in oxygen in this part? 3. Where does blood go after this part?
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1. left atrium 2. high/oxygenated 3. aorta
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aorta: 1. Where does blood enter it from? 2. Is the blood high or low in oxygen in this part? 3. Where does blood go after this part?
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1. left ventricle 2. high/oxygenated 3. to body's arteries
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What is the function of the coronary artery?
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supply the heart muscle with oxygen and nutrients
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Which parts of the heart collects blood from the body?
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the atria
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Which parts of the heart pump the blood (over longer distances)?
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the ventricles
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Which parts of the heart control the direction of blood flow?
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the atrio-ventricular and semilunar valves
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Name the valve between the right atrium and right ventricle.
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right atrio-ventricular valve or the tricuspid valve
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Name the valve between the right ventricle and pulmonary artery.
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semilunar valve
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Name the valve between the left atrium and left ventricle
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left atrio-ventricular valve or bicuspid valve
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Name the valve between the left ventricle and aorta.
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aortic valve
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What does myogenic muscle contraction mean? Where does it happen?
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myogenic=the cells contract without outside signals
It happens in the heart |
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What does the pacemaker (SA node) do? Where is it?
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controls the heart beat/ coordinates the actions of the heart muscle cells by creating electrical impulses. Located in the right atrium wall
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How do nerves affect the heartrate?
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connects the brain to the pacemaker
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What part of the brain controls the heart rate?
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the medulla oblongota (brain stem) of the brain
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Which hormone increases heart rate?
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ephinephrine (adrenaline)
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When the SA node sends out an electrical signal, what happens?
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both atria contract (atrial systole)
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Which chambers of the heart have thicker walls? How does this relate to its function?
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The ventricles are thicker than the atria because they require more muscle to pump the blood longer distances. The left ventricle is thicker than the right ventricle because it pumps blood father…to the whole body rather than just to the lungs
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