A pulse can be detected most easily in:
A. a vein.
B. an artery.
C. a lacteal.
D. a capillary.
Arteries are under much greater pressure than veins because they are carrying blood away from the heart which is the pumping machine to force blood to move to all of the body. Every time the hear contracts, it can be felt in an artery where a surge of blood has just been forced. A capillary is too small to feel a pulse and a lacteal is part of the lymphatic system found in the small intestine.
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Exam Details
While these questions do not fit the MCAT format (they have no related reading passages) they cover concepts one should understand in order to do well in the biological sciences portion of the MCAT.
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