Which of the following structures is the functional unit of a kidney?
a. Afferent arteriole
b. Glomerulus
c. Nephron
d. Nephron tubules
e. Efferent arteriole
Ans: c. Nephron
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The membrane proteins that change shape and bind with specific molecules to transport them across the cell membrane are ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is the most important stimulus for contraction of the gallbladder?
a. CCK causes contraction of the gallbladder. b. mechanical contraction of the small intestine causes bile to be forced out of the gallbladder. c. sympathetic stimulation causes contraction of the gallbladder. d. an increase in bile secretion by the liver causes contraction of the gallbladder. e. bile salts cause contraction of the gallbladder.
Immediate hypersensitivity reactions are mediated by IgE secreted by B cells, whereas delayed hypersensitivity is mediated by T cells
Indicate whether the statement is true or false
The lobe that is immediately posterior to the central sulcus and that is involved in general sensory functions is the
A. frontal lobe. B. parietal lobe. C. insula. D. occipital lobe. E. temporal lobe.