Question

The long fiber that carries impulses away from the cell body is called

• A. dendrite
• B. interneuron
• C. axon
• D. axon terminal

Answer 1

Answer: (B), (C)

axon

The correct option is C:

Explanation for the correct option:

1. The axon is a single protoplasmic fiber that extends from the cell body.
2. It is the longest part of the neuron which conducts impulses away from the cell body.
3. They have vesicles containing neurotransmitters at their axon terminals.

Explanation for the incorrect options:

Option A:

1. Dendrites are the branched structures arising from the cell body that carry impulses towards the cell body.

Option B:

1. The interneurons which are also called the association neurons connect the sensory and motor neurons together.

Option D:

1. The axon terminals are the ends of the axons which has a vesicle containing the neurotransmitter.

Final answer: The long fiber that carries impulses away from the cell body is called axon.