The cytoplasm of the neuromuscular terminal contains vesicles filled with molecules of the neurotransmitter
A) epinephrine.
B) norepinephrine.
C) acetylcholine.
D) antidiuretic hormone.
E) adrenaline.
Question 2
When acetylcholine binds to receptors at the motor end plate, the sarcolemma becomes
A) more permeable to sodium ions.
B) less permeable to sodium ions.
C) more permeable to calcium ions.
D) less permeable to potassium ions.
E) less permeable to potassium and sodium ions.