Biology unit 5 - stimulus and response

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  • Created by: Nadine
  • Created on: 13-06-13 13:17
Stimulus
A chnage in an organisms environment (internal or external) that can be detected by receptor cells
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Receptor
A specialized cell that detects a stimulus and initiates a nerve impulse
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Kineses
A change in the speed of random movement in response to a environmental stimuli
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Taxis
A directed movement toward or away from a stimulus
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Sensory neurone
A nerve cell that carries impulses from a receptor to the central nervous system
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Central nervous system (CNS)
CNS processes incoming information and produces a response, often based on previous experience
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Motor neurone
A nerve cell that carries impulses from the CNS to the effectors
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Effectors
Organs that bring about a response, usually muscle or glands.
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Other cards in this set

Card 2

Front

A specialized cell that detects a stimulus and initiates a nerve impulse

Back

Receptor

Card 3

Front

A change in the speed of random movement in response to a environmental stimuli

Back

Preview of the back of card 3

Card 4

Front

A directed movement toward or away from a stimulus

Back

Preview of the back of card 4

Card 5

Front

A nerve cell that carries impulses from a receptor to the central nervous system

Back

Preview of the back of card 5
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