What is the predominant effect of stimulation of nicotinic-gated channels?
A. Stimulation due to outflow of K+ ions
B. Inhibition due to outflow of K+ ions
C. Inhibition due to influx of Cl- ions
D. Stimulation due to influx of Na+ ions
Answer: D
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Hair cells can be found in which arrangement?
A. Facing the gelatinous mass and otoliths of the macula. B. Within a dome of gelatinous mass inside each ampulla. C. Facing the tectorial membrane of the cochlea. D. All of the answers are locations of hair cells.
Cells of the conducting system in the heart are more sensitive to which ion?
A. Sodium B. Potassium C. Iron D. Chloride
Acids have a pH of <7.0, and they contain a higher concentration of H+ ions than OH- ions.
Answer the following statement true (T) or false (F)
A major difference between endocrine and exocrine glands is that endocrine glands are ductless.
Answer the following statement true (T) or false (F)