Which is the neurotransmitter that causes the release of calcium ions and initiates the steps of skeletal muscle fiber contraction?
A)Acetylcholinesterase
B)Rubitussin
C)Acetylcholine
D)Serotonin
E)Norepinephrine

Question

Quizplus · Accepted Answer

Acetylcholine is the neurotransmitter that is released at the neuromuscular junction and binds to receptors on the skeletal muscle fiber, causing the release of calcium ions from the sarcoplasmic reticulum and initiating the steps of muscle contraction. Acetylcholinesterase is an enzyme that breaks down acetylcholine to terminate its activity. Rubitussin is a cough suppressant medication that has no effect on muscle contraction. Serotonin and norepinephrine are neurotransmitters that can affect mood and other physiological processes, but they do not play a direct role in skeletal muscle contraction.

Which Is the Neurotransmitter That Causes the Release of Calcium