Nervous system
- Created by: chazzasellers
- Created on: 21-05-15 11:25
View mindmap
- Nervous system
- Receptors
- Eye
- Light
- Receptor cells have...
- Nucleus
- Cytoplasm
- Cell membrane
- Receptor cells have...
- Light
- Ears
- Sound
- Changes in position
- Balence
- Tongue
- Chemicals
- Skin
- Pain
- Pressure
- Temperature
- Nose
- Chemicals
- Detect stimuli
- Changes in the environment
- Eye
- Definition
- Enables humans to react to their surroundings and co-ordinate their behaviour
- Reflex actions
- Brain co-ordinates the respose
- Automatic and fast
- Process...
- Impulses from a receptor pass along a sensory neurone to the CNS
- At a junction (synapse), between a sensory and a relay neurone, a chemical is released that causes an impulse to be sent along a relay neurone
- A chemical is then released at at the synapse between the relay and motor neurone, causes impulses to be sent along a motor neurone to the effector
- The response occurs
- A chemical is then released at at the synapse between the relay and motor neurone, causes impulses to be sent along a motor neurone to the effector
- At a junction (synapse), between a sensory and a relay neurone, a chemical is released that causes an impulse to be sent along a relay neurone
- Impulses from a receptor pass along a sensory neurone to the CNS
- Effector
- Muscle
- Contracts
- Gland
- Secreting chemical substances
- Muscle
- Receptors
Comments
No comments have yet been made