PACINIAN CORPUSCLE

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4 Terms

1
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Location

Deep in skin- mostly found on fingers and soles of the toes

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Structure

Single sensory neurone in centre of lamellae- stretch- mediated sodium channels

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Sodium channels function

When under pressure, channels are closed-under pressure they open, causing sodium ions to flow into cell

4
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What happens when the sodium ions flow into cell?

Positive charge changes membrane potential- depolarisation- created generator potential leading to an action potential in the axon