In transmission of information in the nervous system,what is one way in which the process differs if a neuron,rather than a muscle fiber,serves as the postsynaptic cell?
A) All responses are excitatory.
B) All responses are fast and short-lived.
C) There may be hundreds or thousands of presynaptic cells.
D) The presynaptic cell always releases serotonin rather than acetylcholine.
E) The same receptors are used,regardless of the neurotransmitter released.

Question

Quizplus · Accepted Answer

If a neuron serves as the postsynaptic cell, there may be hundreds or thousands of presynaptic cells making connections with it. In contrast, if a muscle fiber serves as the postsynaptic cell, there is typically only one presynaptic cell (i.e. motor neuron) that connects with it. This is because a muscle fiber receives input from only one motor neuron, whereas a neuron can receive input from many other neurons.

In Transmission of Information in the Nervous System,what Is One