Difficulty: Medium
Average Score: 74%
Practice
Which of the following parts of neuron transmits impulses away from the cell body?
Correct answer
C
Rationale
The correct answer is C: Axon. The axon is the part of the neuron that transmits impulses away from the cell body towards other neurons, muscles, or glands. Its structure allows for the rapid transmission of electrical signals.
Rationale:
1. Dendrites receive signals and transmit them towards the cell body, so A is incorrect.
2. Neurolemma is the outermost layer of a Schwann cell, not a part of the neuron responsible for transmitting impulses, so B is incorrect.
3. The synapse is the junction between two neurons where communication occurs, not a part of the neuron transmitting impulses, so D is incorrect.
Rationale:
1. Dendrites receive signals and transmit them towards the cell body, so A is incorrect.
2. Neurolemma is the outermost layer of a Schwann cell, not a part of the neuron responsible for transmitting impulses, so B is incorrect.
3. The synapse is the junction between two neurons where communication occurs, not a part of the neuron transmitting impulses, so D is incorrect.