Why is it important for mammals' blood to return to the heart after picking up oxygen from the lungs?
It is important because mammals use up a lot of oxygen to maintain their body temperature.
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What compensates for mammals needing to use up a lot of oxygen?
The operation that compensates mammals needing to use up a lot of oxygen is the fact that oxygenated blood is pumped to the body at a higher pressure. This increases the rate of blood flow to the tissues.
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What compensates for mammals needing to use up a lot of oxygen?
More blood can be given to the cells in a shorter period of time (i.e. more blood can be pumped to the rest of the body faster).
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Why does the left ventricle have a thicker wall than the right ventricle?
This is because the left ventricle has to pump the oxygenated blood to the rest of the body, whereas the right ventricle only has to pump the deoxygenated blood to the lungs.
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What does the semilunar, tricuspid and bicuspid valves do?
The semilunar, tricuspid and bicuspid valves prevent the backflow of blood - hence why these valves are slanted in the direction of the blood flow.
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Other cards in this set
Card 2
Front
What compensates for mammals needing to use up a lot of oxygen?
Back
The operation that compensates mammals needing to use up a lot of oxygen is the fact that oxygenated blood is pumped to the body at a higher pressure. This increases the rate of blood flow to the tissues.
Card 3
Front
What compensates for mammals needing to use up a lot of oxygen?
Back
Card 4
Front
Why does the left ventricle have a thicker wall than the right ventricle?
Back
Card 5
Front
What does the semilunar, tricuspid and bicuspid valves do?
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