Transferring messages from a motor neuron to a leg muscle requires the neurotransmitter known as
A) dopamine.
B) epinephrine.
C) acetylcholine.
D) insulin.

Question

Quizplus · Accepted Answer

Motor neurons release the neurotransmitter acetylcholine to activate the muscle cells in order to cause contraction. Dopamine and epinephrine are involved in other systems such as reward and stress response, respectively. Insulin is a hormone produced by the pancreas that regulates glucose metabolism, and is not involved in the nervous system.

Transferring Messages from a Motor Neuron to a Leg Muscle