Preganglionic fibers of the autonomic efferent pathway are ________ and secrete ________
A) myelinated; acetylcholine (ACh) and norepinephrine(NE)
B) unmyelinated; acetylcholine (ACh)
C) myelinated; acetylcholine (ACh)
D) myelinated; norepinephrine (NE)
E) unmyelinated; norepinephrine(NE)
C
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An advantage of a 15-degree angulation of the gantry when performing CT head imaging is ___________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements regarding neural regulation of gastrointestinal function is TRUE?
A. The nerve plexus of the GI tract exists in a single layer, just outside of the serosa. B. Smooth muscle of the GI tract is innervated by both sympathetic and somatic motor nerves. C. Networks of neurons in the wall of the GI tract innervate the wall's smooth muscle. D. If the autonomic nerves to the GI tract were cut, digestion and absorption of food could no longer take place. E. There are no afferent neuronal pathways from the GI tract to the central nervous system.
The sodium-potassium ATPase functions by performing
A. primary active transport. B. secondary active transport. C. exocytosis. D. both exocytosis and endocytosis. E. receptor-mediated endocytosis.
The carpus in ungulates is called the:
A) knee B) wrist C) ankle D) stifle