CIE IGCSE Biology

Revision Notes

14.1.1 Mammalian Nervous System

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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

The human nervous system, IGCSE & GCSE Biology revision notesThe human nervous system

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Lára

Author: Lára

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.