- Allows the body to respond to any change in the environment
- Consist of:
- Brain
- Spinal cord
- All the nerves branching out from the cord
- The CNS refers only to only the brain and the spinal cord
- Impulses from the receptors pass through the sensory nerves til they reach the spinal cord and te brain
- There are two ways in which the CSN handles these changes:
- Response coordinated by the brain
- Slower
- Reflex action
- Extra rapid responses to stimuli that by-pass the brain
No comments:
Post a Comment