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8 Cards in this Set
- Front
- Back
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What is the nervous system needed for? |
To help to coordinate and control the body. |
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What is a receptor for? |
An organ or body part that detects a charge (stimulus) in the surroundings |
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following table, identifying the stimuli for each detector: |
Receptor: Stimuli: eyes Light ears sound skin touch/ pressure/pain tongue taste nose smell |
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what is a nuerone? |
A specialised cell in the nervous system |
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compete the table: |
Nuerone Function Sensory Send impulses from receptors in the sense organs to the CNS Relay The link sensory and motor neurones Motor Send impulses from the CNS to muscles and glands.
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Desribe what haooned in a reflex arc. |
Automatic response to a stimulus can bypass the CNS |
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Label |
Receptor (reacts to a stimulus) sensery nuerone (carries messages to the coordinator/ CNS) Relay nuerone (gabps between nuerone are called SYNAPSES) Motor nuerone (carries message away from coordinato/ CNS Effector (a muscle or gland)
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How does the nervous system transmit information in the body? |
Via electrical signals- impulses |
