The structure of a myelinated motor neurone.
The structure of a myelinated motor neurone.
The establishment of a resting potential in terms of differential membrane permeability, electrochemical gradients and the movement of sodium ions and potassium ions.
Changes in membrane permeability lead to depolarisation and the generation of an action potential. The all-or-nothing principle.
The passage of an action potential along non-myelinated and myelinated axons, resulting in nerve impulses.
The nature and importance of the refractory period in producing discrete impulses and in limiting the frequency of impulse transmission.
Factors affecting the speed of conductance: myelination and saltatory conduction; axon diameter; temperature.