The Nervous System

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Stimulus
Change in the environment that you respond to.
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Central Nervous System
The brain and spinal cord.
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Receptor
Cell or sense organ that detects stimuli.
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Peripheral Nervous System
Nerves carrying information from sense organs in the body to the CNS, and then to the effectors.
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Neurone
Cell specialised to carry electrical impulses e.g. nerve cells.
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Reflex Action
Fast automatic response of the body to a potentially dangerous stimulus, coordinated by the spinal cord.
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Synapse
Small gap between neurones, or between a neurone and effector.
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Effector
Organ such as a gland or muscle that respond to a stimulus.
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Other cards in this set

Card 2

Front

The brain and spinal cord.

Back

Central Nervous System

Card 3

Front

Cell or sense organ that detects stimuli.

Back

Preview of the back of card 3

Card 4

Front

Nerves carrying information from sense organs in the body to the CNS, and then to the effectors.

Back

Preview of the back of card 4

Card 5

Front

Cell specialised to carry electrical impulses e.g. nerve cells.

Back

Preview of the back of card 5
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