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  • Read the given statements and select the correct option. (i) Oligodendrocytes form myelin sheet in all Myelinated neuurons. (ii) Myelinated nerve fibres are enveloped with schwa

Read the given statements and select the correct option.

(i) Oligodendrocytes form myelin sheet in all Myelinated neuurons.

(ii) Myelinated nerve fibres are enveloped with schwann cells, which form a myelin sheath around the axon in PNS.

(iii) Non - myelinated nerve fibre is enclosed by a schwann cell that does not form a myelin sheath in PNS.

(iv) Spinal and cranial nerves are made of non-myelinated nerve fibres.  

Option: 1

Statements (i) and (ii) are correct but statements (iii) and (iv) are incorrect.


Option: 2

Statements (i), (ii) and (iii) are correct but statement (iv) is incorrect.


Option: 3

Statements (iii) and (iv) are correct but statements (i) and (ii) are incorrect.


Option: 4

Statements (ii) and (iii) are correct but statements (i) and (iv) are incorrect.


Answers (1)

best_answer

As we learned 

 

Synaptical Vesicles -

Synaptical vesicles contain neurotransmitters such as nor-adrenalin, adrenalin, acetylcholine. 

 

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Posted by

Ritika Jonwal

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