Neurological questions

 Essay about Nerve questions

(a)The figure under represents portion of the axon of a neurone.

Describe the structure of the feature branded A.

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The desk below shows details of the diameter and speed of conduction of impulse along the neurones of numerous animal taxa.

type of neuroneaxon diameter

(Вµm)speed of

bail

(m s–1)animal taxon

myelinated425mammal

myelinated1030amphibian

myelinated1435amphibian

unmyelinated153mammal

unmyelinated100030mollusc

(b)Using the particular data inside the table above, describe the result of each in the following on the speed of conduction: (i)myelination,

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(ii)axon diameter.

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