BRAINCAKEDepolarisation
A generator potential causes sodium ions to enter the neurone through the (stretch-mediated) sodium channels in the membrane.
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Key terms in this lesson
- generator potential
- A change in potential produced in a sensory receptor cell in response to a stimulus, which if it reaches the threshold triggers an action potential.
- positive feedback
- A control mechanism in which a change in a factor brings about effects that amplify the change further, rather than reversing it.
More in Neuronal Communication
- Sensory Receptors
- Pacinian Corpuscles
- Generator Potential
- Resting Potential
- Repolarisation
- Hyperpolarisation
- The Action Potential
- Nerve Impulse
All 38 lessons in Neuronal Communication · All AQA A-level Biology topics