Question

Choose the most appropriate alternatives from amongst the following-

The outermost covering of the brain is

• A. Dura mater
• B. Pia mater
• C. Arachnoid
• D. Pericardium

Answer 1

The correct option is A

Dura mater

The correct option is A

Explanation of the correct option

1. The brain is encased in a body cage called the skull.
2. The brain has a protective covering made of 3 layers together called the meninges.
3. The outer layer is the dura mater, which is tough and thick.

Explanation of incorrect options

Option B

1. The pia mater is the innermost layer of the meninges. It is highly vascularized and in close contact with the brain.

Option C

1. The arachnoid mater is present in between the dura mater and the pia mater.

Option D

1. The pericardium is the outer covering of the heart.

Final answer

The outermost covering of the brain is the dura mater.