CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Neuron

Which of the ...

Question

Which of the following possesses nodes of Ranvier?

A

Myelinated nerve fibre

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Non-myelinated nerve fibre

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Muscle fibre

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Myelinated and non-myelinated nerve fibres

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Myelinated nerve fibre
The correct option is A.
The node of Ranvier is a periodic gap in the myelinated (insulating) sheat on the axon of certain neurons that serves to facilitate the rapid conduction of nerve impulses.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Distinguish between :
Impulse conduction in a myelinated nerve fibre and non-myelinated nerve fibre

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.

Q. Assertion :Non-myelinated nerve fibres do not possess nodes of Ranvier. Reason: This is due to the absence of nissl's bodies in node of Ranvier.

Q. Consider the following statements and state true or false.
1. Synaptic cleft of neurons secrete adrenaline.
2. Myelinated nerve fibres and enveloped with Schwann cells, which form a myelin sheath around the axon.
3. Non-myelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath.
4. Spinal cord and cranial nerves are made up of non-myelinated nerve fibres.

Q. Read the following statements:
(i) Saltatory type of present in non-myelinated nerve fibres (axons) only
(ii) The nerve impulse generated at a point in the neuron faes resistances at sites where myelin sheath is present
(iii) Nodes of Ranvier of axon is exposed to ECF
(iv) In myelinated neurons, ion channels and transport pumps are absent in the nodes of Ranvier
(v) In myelinated nerve fibre, the nerve impulse travel as a continous wave of depolarisation
How many of the statements are correct?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Neuron

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard X Biology

Join BYJU'S Learning Program

CrossIcon