What is the role of the myenteric plexus?
A) Regulation of gut motility and enzyme secretion
B) Ion and water transport by the gut
C) Regeneration of the intestinal epithelium and mucus secretion
D) All of the above
Answer: A
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Once cells in the SA node reach threshold,
A. nothing happens until the AV node is innervated. B. the heart stops beating. C. an action potential is triggered. D. a heart attack occurs.
Compare the structure and function of endocrine and exocrine glands.
What will be an ideal response?
The pathway of the sacral parasympathetic nerves
A) innervates the skin through the abdominal wall. B) joins the ventral roots of the spinal nerves. C) sends fibers directly and independently to the urogenital organs. D) forms distinct pelvic nerves that innervate intramural ganglia. E) None of the answers are correct.
The part of the spermatozoan that enables it to swim through fluid is the acrosome
Indicate whether the statement is true or false.