How did the sinoatrial (SA) node most likely get its name?
A) It is damaged by sinus infections (head colds) .
B) It develops from the sinus venosus and lies in an atrium.
C) It is on the side of the atrium.
D) It lies at the opening of the coronary sinus.
Correct Answer:
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Q32: Large cardiac cells of the conducting system
Q33: The superior corner of the right atrium
Q34: The inner endothelial layer that lines the
Q35: The auricles are
A) earlike flaps on the
Q36: What structures anchor the chordae tendineae?
A) papillary
Q38: Semilunar valves are located
A) between the great
Q39: Which structure develops from the embryological chamber
Q40: A penetrating stab wound to the heart
Q41: The heart chamber with the thickest wall
Q42: The artery that nourishes the walls of
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