The sarcoplasmic reticulum is (the)
A) extension of the skeletal muscle plasmalemma into the cell.
B) cytoplasm of skeletal muscle fibers.
C) plasmalemma of skeletal muscle fibers.
D) endoplasmic reticulum of skeletal muscle fibers.
E) None of the answers are correct.
D) endoplasmic reticulum of skeletal muscle fibers.
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The binding of acetylcholine to its receptor at the neuromuscular junction causes the opening of a
A) calcium channel. B) Na+ channel. C) channel for both Na+and K+. D) ryanodine receptor.
Label J represents which of the following structures?
A) renal papilla
B) renal columns
C) renal pyramid
D) major calyx
E) minor calyx
During the resting membrane potential, the inside of a neuron has a net ____________________ charge
Fill in the blank(s) with correct word
The peripheral chemoreceptors are located in the ____________________ and ____________________ bodies
Fill in the blank(s) with correct word