The binding of ________ to a nicotinic receptor of a muscle fiber will ________ it.
A. acetylcholine; excite
B. acetylcholine; inhibit
C. acetylcholinesterase; excite
D. monoamine oxidase; inhibit
E. norepinephrine; excite
Answer: A
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Which neuroglial cells produce CSF in some regions of the brain?
A) microglia B) Schwann cells C) ependymal cells D) oligodendrocytes E) astrocytes
Generally, negatively charged plasma proteins are
A. repelled by the negative charge of the filtration membrane. B. attracted by the positive charge of the filtration membrane. C. engulfed by endocytosis and reabsorbed at the filtration membrane. D. moved across the filtration membrane by active transport pumps.
The manufacture of red blood cells is called ____________________.?
Fill in the blank(s) with correct word
Sodium homeostasis leads to the homeostasis of ________________
A. chloride B. hydrogen C. calcium D. potassium E. magnesium