Q32 / 200 · MHT CET - Medical 2026 (25 April Shift 1) · Biology
Outermost thick, vascular and fibrous meninx is ________ .
- Correct answerAdura mater
- Bpia mater
- Carachnoid mater
- Dgrey matter
Solution
The central nervous system is protected by three membranous coverings known as the meninges.
The outermost meninx is the dura mater. It is a thick, tough, and fibrous membrane that provides strong mechanical protection to the brain and spinal cord.
The middle meninx is the arachnoid mater, which is a thin, web-like, and avascular layer.
The innermost meninx is the pia mater, which is a very thin, delicate, and highly vascular layer that closely adheres to the surface of the brain and spinal cord.
Grey matter refers to the regions of the central nervous system containing predominantly neuronal cell bodies and is not a meninx.
Therefore, the outermost thick, tough, and fibrous meninx is the dura mater.
Answer: dura mater
The outermost meninx is the dura mater. It is a thick, tough, and fibrous membrane that provides strong mechanical protection to the brain and spinal cord.
The middle meninx is the arachnoid mater, which is a thin, web-like, and avascular layer.
The innermost meninx is the pia mater, which is a very thin, delicate, and highly vascular layer that closely adheres to the surface of the brain and spinal cord.
Grey matter refers to the regions of the central nervous system containing predominantly neuronal cell bodies and is not a meninx.
Therefore, the outermost thick, tough, and fibrous meninx is the dura mater.
Answer: dura mater
Hence, the correct answer is option: 'A'.