Excitability of neurones

Subject: Biology

Grade: Upper Secondary

Publisher: YDP

Resource types: Whiteboard presentation

Resource ID: b1597
Description:

At the end of this activity, students should be able to:
– describe the structure of a neurone
– define two functional states of a neurone
– describe the conduction of a nerve impulse along an axon
– explain the relationship between the speed of conduction, the presence of a myelin sheath and axon diameter.

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Excitability of neu... Class activity

Consists of...
Structure of a moto... Slideshow Neurone Illustration The parts of the ne... Illustration The structure of a ... Whiteboard exercise How a signal is tra... Animation How a neurone works Animation Potassium ions Animation Sodium ions Animation Resting and action ... Whiteboard exercise All or nothing resp... Animation The types of potential Whiteboard exercise Refractory period Slideshow Measuring membrane ... Slideshow The patch-clamp set-up Illustration Measuring neurone p... Illustration Unidirectional tran... Slideshow Functional arrangem... Whiteboard exercise Propagation of a ne... Slideshow Transmission of act... Simulation Afferent and effere... Illustration Afferent nerve fibres Illustration Efferent nerve fibres Illustration

Relevant to...

Secondary School

Upper Secondary (Grades 10-12)

Biology

Nervous coordination

29. Excitability of neurones

YDP SA

Keywords

refraction, neurone, axon, excitability, Cell body, Glial cells, refractory period, Repolarisation, Threshold value, Dendrites, Myelin sheath, Nerve impulse, Terminal bouton, Schwann cells, nerve fibres, orthodromal transmission, all-or-nothing, neurones, Excitability of neurones

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