Where is the nucleus of a neuron found?Group of answer choicesmyelin sheathdendritescell bodycompanion cellaxon branches
Question
Where is the nucleus of a neuron found?
Group of answer choices:
- myelin sheath
- dendrites
- cell body
- companion cell
- axon branches
Solution
Answer
The nucleus of a neuron is found in the cell body (also known as the soma). The cell body contains the nucleus, which houses the genetic material of the neuron and is responsible for regulating cellular activities.
In contrast, the other options do not contain the nucleus:
- Myelin sheath: This is a fatty layer that surrounds the axon and helps with the conduction of nerve impulses but does not contain a nucleus.
- Dendrites: These are branching extensions of the neuron that receive signals from other neurons but do not have a nucleus.
- Companion cell: This term typically refers to cells associated with certain plants and not neurons.
- Axon branches: These are extensions that transmit signals to other neurons or muscles but also do not contain a nucleus.
Thus, the correct answer is cell body.
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