Which neuroglial cell produces myelin in the peripheral nervous system?
A) Schwann cell
B) Oligodendrocyte
C) Astrocyte
D) Microglial cell
Answer: A
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Stenosis (constriction) of the hepatopancreatic ampulla would interfere with
A. the transport of bile and pancreatic juice. B. the secretion of mucus. C. the passage of chyme into the small intestine. D. peristalsis. E. salivary gland secretion.
Organic compounds must contain:
a. oxygen b. carbon-oxygen bonds c. carbon-hydrogen bonds d. none of the above
Freckles are elevated patches with an abnormal coloration of the skin
Indicate whether the statement is true or false
which best describes the diaphragm?
a) a muscular dome between the thoracic and abdominal cavities b) a sphincter that encircles the eye c) a broad fan-shaped muscle on the side of the head d) a thin superficial muscles of the upper chest and lower face