The Nervous System

The Nervous System

Introduction

The human nervous system is the processing system, which keeps in touch with the external environment in an efficient way. The emotions, thoughts and consciousness reside in the nervous system. The human nervous system is the combination of nerves and the spinal cord (Nathan, 2006). In the human body, the nervous system is very complicated and complex. It is divided into couple of main parts i.e. the central nervous system (CNS) and the peripheral nervous system.

The CNC is consisted of the spinal cord and the brain. The main job of CNC is to receive information from the body and transmits out the instructions to follow accordingly. The other part of the brain is made of all the nerves and wiring. This part of the brain transfers the messages from the brain to the entire human body. It does this via the spinal cord, which runs from the brain down through the back and contains thread like nerves that branch out to every organ and body part. The brain is protected by the bones of skull where as a set of ring-shaped bones - vertebrae protects the spinal cord (Taussig, 2010).

Discussion

The nervous system of human being allows us to understand sensory information and orders. Furthermore, it also helps us to learn, interpret reasons, imagine and experience emotions. Moreover, the system makes the body to maintain homeostasis. Homeostasis is crucial for survival, the reason being the body can only survive within a narrow range of conditions (Titus et. Al., 2007). The human nervous system regulates the structure of body and processes in order to maintain homeostasis regardless of the fluctuations in the internal and external environment. The nervous system is set to sense and react with respect to the continuous changes inside the body and in the ...