The artery that supplies most of the small intestine and the first half of the large intestine is the __________.
a. inferior mesenteric artery
b. superior mesenteric artery
c. hepatic artery
d. suprarenal artery
Ans: b. superior mesenteric artery
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A very large, fast-adapting tactile receptor that is composed of a single dendrite enclosed by concentric layers of collagen is a
A) Bulbous corpuscle. B) lamellar (Pacinian) corpuscle. C) tactile (Meissner) corpuscle. D) tactile (Merkel) disc. E) root hair plexus.
Two opposing mechanisms determine alveolar expansion: ________ leads to alveolar expansion, while ________ opposes alveolar expansion.
A. positive pleural pressure; lung recoil B. negative pleural pressure; lung recoil C. lung recoil; negative pleural pressure D. lung recoil; positive pleural pressure
Blood pressure is lowest in the
A) arteries. B) arterioles. C) capillaries. D) venules. E) veins.
As sodium is reabsorbed actively, which of the following is absorbed passively?
a. Ca2+ b. PO43- c. Cl- d. Na+ e. K+