BRAINCAKEGenerator Potential
Normally, the sensory neurone is at its resting potential. The axon membrane is negative on the inside.
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Key terms in this lesson
- action potential
- A rapid, temporary reversal of the electrical charge across an axon membrane (depolarisation followed by repolarisation) that occurs when a stimulus exceeds the threshold value.
- resting potential
- The potential difference of about -70mV maintained across the membrane of a neurone that is not conducting an impulse, with the inside negative relative to the outside.
- Pacinian corpuscle
- A sensory receptor found deep in the skin that detects mechanical pressure and generates a generator potential when its membrane is stretched.
More in Neuronal Communication
- Motor Neurones
- Myelinated Neurones
- Sensory Receptors
- Pacinian Corpuscles
- Resting Potential
- Depolarisation
- Repolarisation
- Hyperpolarisation
All 38 lessons in Neuronal Communication · All AQA A-level Biology topics