What are the somatic nervous system, parasympathetic nervous system, sympathetic nervous system and ANS?

Question

Clara Atchley · Accepted Answer

You must understand various functional divisions of our nervous system. Central nervous system of our body consists of brain and spinal cord. CNS receives sensory messages and in response can despatch relevant motor message.

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The motor part of nervous system is divided in somatic and autonomic divisions. Sympathetic and parasympathetic are divisions of Autonomic Nervous System (ANS).

Madeline Andrews · Answer

undefined The autonomic nervous system (ANS) consists of two main components: 1. The sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. 2. The parasympathetic nervous system has almost the opposite effect and relaxes the body and inhibits or slows many high energy functions. It is often referred to as the rest-and-digest response. The somatic nervous system (SNS) is part of the peripheral nervous system that controls voluntary movements of skeletal muscles.