Which of the following is a similarity between the somatic motor and autonomic pathways? which of the following is a similarity between the somatic motor and autonomic pathways? the neuron that originates in the cns stimulates cholinergic muscarinic receptors. acetylcholine is secreted from the neuron that originates in the cns. there are two neurons between the cns and the target tissue.

The correct answer is B: Acetylcholine is secreted from the neuron that originates in the CNS.

Explanation:

The nervous system is divided into:

The somatic motor system, which regulates skeletal muscle contraction The autonomic nervous system, which is also divided into sympathetic, parasympathetic and enteric system, and its main function is to regulate internal organs functioning. Also, sympathetic has a key role in the “fight or flight” response.

Although these two systems have different functions, they work with the same neurotransmitter, which is acetylcholine.  

Acetylcholine is produced on CNS neurons and its effects depend on the activation of nicotinic and muscarinic receptors that are located in pre and post synapsis.  

Muscarinic receptors are G-protein coupled receptors and nicotinic receptors are polypeptide receptors associated to ion channels

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