When reviewing the purpose/action of neurotransmitters as they interact with different receptors, the nursing instructor gives an example using acetylcholine. When acetylcholine is released at the sinoatrial node in the right atrium of the heart, it is
A) positively charged.
B) inhibitory.
C) overstimulated.
D) dormant.

Question

Quizplus · Accepted Answer

The action of a transmitter is determined by the type of receptor to which it binds. Acetylcholine is excitatory when it is released at a myoneural junction, and it is inhibitory when it is released at the sinoatrial node in the heart.

When Reviewing the Purpose/action of Neurotransmitters as They Interact with Different