Stimulation deforms lamellae, stretching sodium channels and causing sodium influx into the neuron, creating a generator potential.
A generator potential is created when lamellae deform upon stimulation, stretching sodium channels in the sensory neuron membrane, allowing sodium ions to diffuse in.
| Front | Explain how a generator potential is created when a Pacinian corpuscle is stimulated (3 marks) |
|---|---|
| Back | When a Pacinian corpuscle is stimulated, the lamellae are deformed and press on the sensory nerve ending This causes the sensory neurones cell membrane to stretch and the deformation of stretch mediated sodium ion channels The sodium ion channels open and sodium ions diffuse into the cell creating the generator potential |
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