Is the primary efferent neurotransmitter secreted by efferent axons of the cns.

The correct answer is "acetylcholine".

Acetylcholine is the primary efferent neurotransmitter of the central nervous system. Acetylcholine functions in the autonomic nervous system as a neurotransmitter in the autonomic ganglia of both parasympathetic and sympathetic nervous system. It also functions as the primary neurotransmitter for the parasympathetic nervous system. Acetylcholine also functions as the neurotransmitter released by motor neurons at the motor end plate to stimulate muscle excitation-contraction coupling. 

Neurotransmitters are messengers responsible for communication between neurons. they are released from synaptic vesicles and are received by receptors.  the communication is referred to as neurotransmission. the following statement is true about neurotransmitters: a. they're stored in synaptic vesicles in the axon.

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