How much blood does the average adult have?
A) 7 L B) 1.5 L C) 3 L D) 5 L
Answer: D
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Muscles that insert on the olecranon process of the ulna can act to
A) flex the forearm. B) extend the forearm. C) abduct the forearm. D) adduct the forearm. E) extend the carpals.
Saltatory conduction of an action potential means that
A. once one action potential is created, it moves down the axon. B. the whole axon depolarizes at the same time. C. an action potential is conducted from one node of Ranvier to the next node. D. one action potential stimulates the production of a new action potential at the adjacent site.
The first paired branches of the abdominal aorta are the
A) renal arteries. B) inferior phrenic arteries. C) superior mesenteric arteries. D) common iliac arteries. E) gonadal arteries.
Leather is made of the ________ layer of the dermis
A) collagen B) keratin C) areolar D) reticular E) papillary