Essay about The Central Nervous System For Human Function

1111 Words Feb 27th, 2015 null Page
The central nervous system is crucial to human function; it consists of the brain, spinal cord and a network of nerves moving to the rest of our body. It controls everything in the body e.g. emotions, senses, responses, reactions, body balance like temperature and heartbeat as well as movement of our muscles and glands.
The CNS (Central nervous system) covers the brain and spinal cord where the PNS (Peripheral nervous system) is made up of the nerve fibre’s that branch off from the spinal cord and extend to all parts of the body, including the neck and arms, torso, legs, skeletal muscles and internal organs.

The brain is the control centre of the nervous system, it co-ordinates the body function.
The spinal cord is a conduit for signalling between the brain and the rest of the body.
The peripheral nervous system is divided in the somatic nervous system and the autonomic nervous system.
The somatic system is made up of peripheral nerve fibres, which send sensory information to the CNS, as well as to motor nerve fibres that project to skeletal muscle.
The autonomic nervous system takes care of the smooth muscle of the internal organs and glands. It can be subdivided into the parasympathetic nervous system and the sympathetic nervous system.

Sense organs are made up of sensory cells that receive and convert information from our sense into electrical impulses for the brain, the role of sense organs in the body is to respond and detect changes in the environment and to…

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