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Telophase

Myelin sheath...

Question

Myelin sheath breaks at intervals by depressions called ________

A

Nodes of Schwann

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B

Nodes of glial cells

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C

Nodes of astrocytes

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D

Nodes of ranvier

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Solution

The correct option is D Nodes of ranvier
Myelin sheath breaks at intervals by depressions called Nodes of Ranvier.

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Similar questions

Q. In a myelinated neuron, two adjacent myelin sheaths are separated by gaps called as_________________.

A myelinated nerve fibre is enveloped by Schwann cells, which form a myelin sheath around the axon.

An unmyelinated nerve fibre is not enclosed by a Schwann cell and hence does not form a myelin sheath around the axon.

Q. Myelin sheath is a layer covering

Q. Consider the following statements and find out coorect option:
(a) Three are two types of axons, namely myelinated and non myelinated
(b) Myelinated nerve fibres found in autonomous and the somatic neural systems
(c) The myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon.
(d) The gap between two adjacent myelin sheaths are calleds nodes of Ranvier.
(e) Unmyelinated nerve fibre found in spinal and cranial nerves
(f) Unmyelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath around the axon.

(a) State two functions of myelin sheath.

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