Biology 241 - Accelerated General Human Physiology » Summer 2021 » Quiz 12

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Question #1
Blood cells replace themselves using hematopoiesis.
A.   FALSE
B.   TRUE
Question #2
The pulmonary circuit contains the pulmonary trunk, which receives blood from which heart chamber?
A.   right atrium
B.   right ventricle
C.   left atrium
D.   left ventricle
Question #3
Which is true during systole?
A.   heart chambers are filling with blood
B.   blood pressure in ventricles is decreasing
C.   heart chambers are ejecting blood
D.   heart muscle is repolarizing
Question #4
Which is true of the cardiac action potential of myocardial contractile cells?
A.   can summate
B.   long plateau phase
C.   short refactory period
D.   propagate with decrement
Question #5
An incompetent mitral valve prevents backflow during systole.
A.   TRUE
B.   FALSE

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