G cells of the stomach secrete
A) cholecystokinin.
B) secretin.
C) gastrin.
D) enteropeptidase.
E) pepsin.
C
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The anterior root of a spinal nerve contains
A) axons of motor neurons. B) axons of sensory neurons. C) cell bodies of motor neurons. D) cell bodies of sensory neurons. E) interneurons.
Mucosal associated lymphatic tissues (MALT) are
A. clusters of splenocytes located in the lamina propria of mucous membranes. B. aggregates of macrophages located in the intestines. C. clumps of mucous lining the lumen of the gastrointestinal tract. D. aggregates of lymphatic tissue scattered throughout the lamina propria of mucous membranes.
A cluster of specialized ependymal cells and capillaries that form and secrete cerebrospinal fluid into a ventricle is a
A) arachnoid granulation. B) cervical plexus. C) choroid plexus. D) pampiniform plexus.
A local anesthetic such as Novocaine decreases membrane permeability to Na+ ions. The use of this anesthetic will
A. block sensory input into the CNS. B. enhance the development of EPSPs. C. cause RMP to move closer to threshold. D. cause Cl- ions to enter cells instead of Na+ ions. E. depolarize the cell.