The _______ receive(s) blood returning to the heart from the veins and act(s) as reservoir(s) between contractions of the heart.
A) ventricles
B) atria
C) mitral valve
D) aorta
Correct Answer:
Verified
Q1: Cardiac muscle fibers are joined at their
Q2: The left atrium _.
A) pumps blood into
Q3: The period of contraction is known as
Q5: Which of the following is least likely
Q7: The _ is the volume of blood
Q8: Two _ arteries branch off from the
Q8: Increased venous return results in a(n) _.
A)
Q9: The function of hemoglobin is to _.
A)
Q10: From the SA node, impulses pass into
Q11: Which of the following are most closely
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