Tag: action potential

Wave of Depolarisation – Nervous Communication Ep 4

wave of depolarisation, action potential, refractory period

Last time we looked at an action potential happening in a section of a neurone cell membrane. The membrane was depolarised and repolarised. However, that depolarisation must travel along the whole length of a neurone in the right direction. Today we will look at how an action potential travels in a wave of depolarisation. The … Read more

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Action Potential – Nervous Communication Ep 3

action potential graph, depolarisation, repolarisation, hyperpolarisation, resting potential

In the last article we learnt that neurone cell membranes are polarised at rest (when they are not being stimulated). However, when a stimulus is detected a nerve impulse must be sent along the neurone. Today we will look at the sequence of events that happens during an action potential and how ion channels bring … Read more

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