What is the function of interstitial cells of the myenteric plexus?
A. Production of mucus for lubrication and protection
B. Pacemaker cells that promote rhythmic contractions of the smooth muscle
C. Chemoreceptors that detect the chemical composition of food
D. Release of enzymes for chemical digestion
Answer: B
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The mucous membrane that lines the eyelids and is reflected over the anterior surface of the eyeball is the conjunctiva
Indicate whether the statement is true or false
What is the most direct function of the juxtaglomerular apparatus?
A) help regulate blood pressure and the rate of excretion by the kidneys B) help regulate blood pressure and the rate of blood filtration by the kidneys C) help regulate water and electrolyte excretion by the kidneys D) help regulate urea absorption by the kidneys
The first branch of the lumbar plexus is the ________ nerve.
Fill in the blank(s) with the appropriate word(s).
If oxygen levels drop such that glucose metabolism becomes primarily anaerobic, then the amount of ATP produced per glucose molecule will
A. increase slightly.
B. remain roughly the same.
C. be halved.
D. decrease to much less than half of what it was.