GCSE Biology

GCSE Biology

HideShow resource information

The Nervous System

  • Sense Organs detect stimuli - a change in environment which the organ can react quickly to.
  • The sense organs have different receptors. These are a group of cells which are sensitive to a stimulus. They change stimulus energy to electrical impulses.
  • A stimulus can be light, sound, taste, touch, pressure, or a change in position or temperature.
1 of 2

The Central Nervous System

  • The central nervous system co-ordinates a respnse. It's where all the information from sense organs are sent, and where reflexes and actions are co-ordinated.
  • The CNS is only the brain and the spinal cord.
  • The neurones transmit the information to and from the CNS.
  • In
2 of 2

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »