Nerve tracts or fasciculi make up the
A) central canal.
B) posterior gray horns.
C) gray commissures.
D) anterior white columns.
E) all of the above.
Answer: D
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Which of the following does NOT describe the sympathetic division of the ANS?
a) Ganglia primarily found in the head b) Stimulates sweat glands c) Synapses with smooth muscle in blood vessel walls d) Short preganglionic neurons e) Thoracolumbar output
Angiotensin II increases blood pressure by
A) releasing renin. B) inhibiting the release of aldosterone. C) promoting the excretion of sodium. D) increasing peripheral resistance.
Afferent neurons have a long peripheral axon and a short central axon
Indicate whether the statement is true or false
Which of the following represents a mismatch in stomach wall structure?
A. Mucosa - gastric glands B. Gastric pits - open onto surface of stomach mucosa C. Rugae - folds of mucosa and submucosa D. Muscularis - two layers; both circular E. Lining - simple columnar epithelium