B1 2.1 Responding to change
- Created by: 12dalel
- Created on: 30-06-16 14:50
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- Nervous System
- Receptors in the sense organs
- Light stimulates receptors in the eye and electrical impulses
- Passed along to the brain along neurons (nerve cells)
- The brain coordinates responses to many stimuli
- Other stimuli include sound, chemicals, temperature, touch and pain
- Passed along to the brain along neurons (nerve cells)
- Light stimulates receptors in the eye and electrical impulses
- The brain and spinal cord form the central nervous system (CNS)
- Nerves contain neurons
- Sensory neurons carry impulses from receptors to the CNS
- Motor neurons carry impulses from the CNS to effector organs which may be muscles or glands
- The muscles respond by contracting
- The glands respond by secreting chemicals
- Receptors in the sense organs
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