A thin vascular membrane of brain is
Source: https://www.lazynewton.com/questions/zoology/neural-control-and-coordination/thin-vascular-membrane-brain-642554
Quick Answer
Option B
Piameter
— Concept: This question tests your knowledge of the protective coverings of the brain, specifically the meninges.Step-by-step solution
1AnswerB·
Concept: This question tests your knowledge of the protective coverings of the brain, specifically the meninges.
Why (B) is correct: The brain and spinal cord are protected by three layers of membranes called meninges. From outermost to innermost, these are the dura mater, arachnoid mater, and pia mater. The pia mater is the innermost, thin, and highly vascular membrane that is in direct contact with the brain and spinal cord, following all their contours.
Why other options are wrong:
- (A) Arachnoid: The arachnoid mater is the middle, web-like, non-vascular layer.
- (C) Durameter: The dura mater is the outermost, thick, fibrous, and tough protective layer.
- (D) Epineurium: Epineurium is the outermost connective tissue sheath that surrounds an entire peripheral nerve, not a brain membrane.
NEET Tip: Remember the order of meninges from outside to inside using the mnemonic DAP (Dura, Arachnoid, Pia).
Correct Answer: (B)
Piameter