Mammalian Nervous System (Cambridge O Level Biology)

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Cara Head

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Cara Head

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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

The human nervous systemThe human nervous system

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Cara Head

Author: Cara Head

Expertise: Biology

Cara graduated from the University of Exeter in 2005 with a degree in Biological Sciences. She has fifteen years of experience teaching the Sciences at KS3 to KS5, and Psychology at A-Level. Cara has taught in a range of secondary schools across the South West of England before joining the team at SME. Cara is passionate about Biology and creating resources that bring the subject alive and deepen students' understanding