Chapter 23, Problem 1LTB

How do the CNS and PNS differ?

Summary Introduction

To analyze:

The difference between CNS and PNS.

Introduction:

The nervous system is defined as the system, which controls all the body movements of a living organism. In humans, the nervous system is divided into two main division, central nervous system and peripheral nervous system.

Explanation of Solution

The components of the nervous system are located throughout the body. The brain is regarded as the central processing unit of the nervous system. The differences between the central nervous system and peripheral nervous system is given below:

Central nervous system (CNS)	Peripheral nervous system (PNS)
It is composed of spinal cord and brain. Responsible for integrating and coordinating the information. It is the location of functions such as learning, memory, emotions, and intelligence. The damage to the CNS can affect all the body.	It is composed of network of nerves present outside the brain and spinal cord. It is spread throughout the body. It is responsible for detecting the stimulus and link the CNS to the body. The damage to the PNS causes local damage.

Conclusion

The CNS is the central processing unit of the nervous system. The PNS is the link between the CNS and body.