Basic differences between somatic and automatic nervous system

SOns consists of three parts

Spinal nerves are peripheral nerves that carry motor commands and sensory information into the spinal cord. Cranial nerves are the nerve fibers that carry information into and out of the brain stem. They include information related to smell, vision, eyes, eye muscles, the mouth, taste, ears, the neck, shoulders, and the tongue. Association nerves integrate sensory input and motor output; these nerves number in the thousands.

Ans is split into 2

The ANS can be subdivided into the parasympathetic nervous system (PSNS) and the sympathetic nervous system (SNS).

SOns

The SoNS consists of efferent nerves responsible for stimulating muscle contraction, including all the non-sensory neurons connected with skeletal muscles and skin. The somatic nervous system controls all voluntary muscular systems within the body, and also mediates involuntary reflex

autonomic nervous system

The part of the PNS that controls the glands and the muscles of the internal organs.

postganglionic neuron (ans)

neurons are cholinergic (that is, acetylcholine is the primary neurotransmitter). In the sympathetic division, neurons are mostly adrenergic (that is, epinephrine and norepinephrine function as the primary neurotransmitters).

preganglion neuron (ans)

preganglionic fibers of the ANS are cholinergic—meaning they have acetylcholine as their neurotransmitter, and are myelinated for faster transmission.

somatic nervous system

the division of the peripheral nervous system that controls the body's skeletal muscles