Question

What is the difference between ANS, CNS, and SNS?

Answer 1

ANS:

ANS stands for Autonomous Nervous System. Motor neurons, sensory neurons, and sensory receptors involved in involuntary actions of a body make an autonomous nervous system.

CNS:

CNS stands for Central Nervous System. The brain and spinal cord together form the central nervous system.

SNS:

SNS stands for Sympathetic or Somatic Nervous System. Motor neurons, sensory neurons, and sensory receptors involved in voluntary actions of the body form somatic nervous systems.

Difference between ANS, CNS, and SNS:

	ANS	CNS	SNS
1	The Autonomous Nervous System is one of two parts of the Peripheral Nervous System (PNS).	The Nervous System is divided into two parts, the Central Nervous System (CNS) and the Peripheral Nervous System ( PNS).	The Somatic Nervous System is one of two parts of the Peripheral Nervous System (PNS).
2	This nervous system regulates involuntary actions of the body.	This nervous system helps in the control and coordination of the body.	The nervous system regulates the voluntary actions of the body.
3	It takes part in an involuntary action of the body such as breathing, heart rate, other metabolic reactions, Sexual arousal, etc.	Access sensory information and Generating a response to this information is the main function of the central nervous.	It takes part in voluntary actions of a body such as movement of muscles, responding to external stimuli, etc.