Co-ordination and Control
- Created by: chocoholic15
- Created on: 04-04-15 14:44
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- Co-ordination and Control
- Neurones
- Motor
- Carry impulses from the CNS to the effector
- CENTRAL NERVOUS SYSTEM: The brain and spinal cord.
- Carry impulses from one part of the CNS to another
- CENTRAL NERVOUS SYSTEM: The brain and spinal cord.
- Carry impulses from the CNS to the effector
- Relay
- Carry impulses from one part of the CNS to another
- Sensory
- Transmits impulses from the receptor to the CNS
- Motor
- Receptors
- Sense Organ
- Contain specific receptors that respond to specific stimuli
- Eg. Eyes respond to light.
- STIMULI: Things that set off a reaction in the nervous system.
- Contain specific receptors that respond to specific stimuli
- Groups of cells that can detect change in the environment (stimulius) and produce electrical impulses in response
- STIMULUS: Any change in the environment that can be detected by receptors.
- Sense Organ
- Reflex Action
- REFLEX ARC: The nerve pathway for a reflex action
- A way for the body to quickly respond to a stimulus to minimise damage- the brain is not used.
- Eg. When a muscle contracts to move the hand away from something hot.
- Effectors
- Parts of the body, such as a muscle, that respond to a stimulus
- Synapse
- The gap between two neurones where information crosses using neurotr-ansmitters
- Information diffuses from one neurone across the synapse which makes the other neurone transmit an electrical impulse
- Neurones
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