In the nervous system,which of the following is true of neurons and the neurotransmitters they secrete?
A)Most neurons secrete many neurotransmitters at the same time.
B)At any given time,a neuron is receiving a mixture of messages from the neurotransmitters.
C)Neurotransmitters in neurons cannot be both excitatory and inhibitory.
D)Neurotransmitters are located in the nuclei of the neurons.

Question

Quizplus · Accepted Answer

Neurons receive messages from multiple neurotransmitters at the same time, and the combination of these messages determines the overall effect on the neuron. Therefore, option B is the correct choice. Option A is incorrect because not all neurons secrete multiple neurotransmitters simultaneously. Option C is incorrect because there are neurotransmitters that can act in both an excitatory and inhibitory manner. Option D is incorrect because neurotransmitters are usually stored in vesicles in the axon terminals, not in the nuclei of the neurons.

In the Nervous System,which of the Following Is True of Neurons