Understanding Nerve Fibers: Types And Classification

Understanding Nerve Fibers: Types And Classification

Types of nerve fibers.
Answer:

1. Depending upon structure.

1. Myelinated nerve fibers.
   • Nerve fibers covered by myelin sheath.
2. Non myelinated nerve fibers.
   • Does not have myelin sheath.

2. Depending upon distribution.

1. Somatic nerve fibers – supplies skeletal muscles.
2. Visceral nerver fibers – supplies internal organs of body.

3. Depending upon origin.

1. Cranial nerves – arises from the brain.
2. Spinal nerves – arises from spinal cord.

4. Depending upon function.

1. Motor nerve fibers – carries motor impulses.
2. Sensory nerve fibers – carries sensory impulses.

5. Depending, upon secretion of neurotransmitter.

1. Adrenergic nerve fibers – secretes noradrenaline.
2. Chlonergic nerve fibers – secretes acetylcholine.

6. Depending upon diameter and conduction.

1. Type A
2. Type B
3. Type C.