NEET
- Exam
- NEET
- Subject
- Zoology
- Chapter
- Neural Control and Coordination
NEET · Zoology · Neural Control and Coordination
Based on diagram shown below, the correct statement/s are: [A] It...
Based on diagram shown below, the correct statement/s are:
![Based on diagram shown below, the correct statement/s are: [A] It is a type of unmyelinated nerve fibre. [B] It is a](/api/proxy-image?clean=1&b=aHR0cHM6Ly9jZG4tcXVlc3Rpb24tcG9vbC5nZXRtYXJrcy5hcHAvTkVFVC9OQ0VSVC9EaWFncmFtQmFzZWQvZmw4SkZpWTAwYUlwWVdNaE1vdHpueHdRY1RqUFBoNFpPenFMbm5CNTZKVURnU04zZzEucG5n)
[A] It is a type of unmyelinated nerve fibre. [B] It is a type of myelinated nerve fibre. [C] Schwann cells form myelin sheath around the neurons. [D] This type of neuron is found in spinal and cranial nerves.
[A] It is a type of unmyelinated nerve fibre. [B] It is a type of myelinated nerve fibre. [C] Schwann cells form myelin sheath around the neurons. [D] This type of neuron is found in spinal and cranial nerves.
Options
- AA, C
- BB, C
- CB, D
- DB, C, D
Correct answer
C. B, D
Step-by-step solution
Trick point: here neuron is mentioned in [C] option but neuron contains cell body as well which do not have myelin sheath. The myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon. The gaps between two adjacent myelin sheaths are called nodes of Ranvier. Myelinated nerve fibres are found in spinal and cranial nerves. Unmyelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath around the axon, and is commonly found in autonomous and the somatic neural systems.
![Based on diagram shown below, the correct statement/s are: [A] It is a type of unmyelinated nerve fibre. [B] It is a](/api/proxy-image?clean=1&b=aHR0cHM6Ly9jZG4tcXVlc3Rpb24tcG9vbC5nZXRtYXJrcy5hcHAvTkVFVC9OQ0VSVC9EaWFncmFtQmFzZWQvRGdhSVJHVWc5SmFQSm1laDRDTG0zNGJtelY5VXJnVGJHNjRrRDNYYkJ2TXZTS3VESzkucG5n)