Mammalian Nervous System (Cambridge (CIE) O Level Biology): Revision Note
Structure & Role of the Mammalian Nervous System
The human nervous system consists of the:
central nervous system (CNS) - the brain and the spinal cord
peripheral nervous system (PNS) - all of the nerves in the body
It allows us to
Make sense of our surroundings and respond to them
Coordinate and regulate body functions
Information is sent through the nervous system as nerve impulses - electrical signals that pass along nerve cells known as neurones
A bundle of neurones is known as a nerve
Nervous System Diagram
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The human nervous system
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