Question

Choose the most appropriate alternatives from amongst the following-

The white matter of the cerebrum mainly consists of

• A. Axons
• B. Cytons
• C. Dendrites
• D. Both a and b

Answer 1

The correct option is A

Axons

The correct option is A

Explanation of the correct option

1. The organs of the nervous system are divided to be made of two substances based on their color appearance- grey and white matter.
2. The grey matter mainly consists of the neuronal cell bodies whereas the white matter mainly consists of myelinated axons.
3. The inner white matter of the cerebrum is made mainly of axons.

Explanation of the incorrect options

Option B

1. Cytons or cell bodies are present in the outer cortex region of the cerebrum. They give a greyish appearance to the cerebrum.

Option C

1. The white matter of the cerebrum does not contain dendrites.

Option D

1. The white matter is made of axons majorly. The grey matter consists of cytons.

Final answer

The white matter of the cerebrum mainly consists of axons.