Which statements about receptors and the neurotransmitters are true?
1)Nicotinic and muscarinic receptors respond to NE
2)Adrenergic receptors respond to ACh
3)ACh binding to nicotinic receptors is excitatory
4)Adrenergic receptors are located on postganglionic neuron cell bodies
5)NE can cause an excitatory or inhibitory effect on effectors
6)Nicotine can mimic ACh
A)1,3,4,6
B)1,3,5,6
C)3,5,6
D)2,4,5
E)1,2,3,4,5,6

Question

Quizplus · Accepted Answer

3,5,6 are correct. ACh binding to nicotinic receptors is indeed excitatory. NE (norepinephrine) can have either excitatory or inhibitory effects depending on the receptor type it binds to. Nicotine can mimic the action of ACh by binding to nicotinic acetylcholine receptors.

Which Statements About Receptors and the Neurotransmitters Are True