Neurones

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7 Terms

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types of neurone

Sensory neurone

relay neurone

motor neurone

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dendrites

short branches situated inside the spinal cord

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axon

a long branch of a neurone extending from the spinal cord to a muscle

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node of Ranvier

where the axon is exposed (gaps in myelin sheath)

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myelin sheath

made of Schwann cells, surrounds the axon, insulating the axon from other neurones

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synaptic knobs

end of the neurone

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the benefit of myelin sheaf

action potential has to travel less distance than a normal neurone (insulation allows action potential to move quicker)