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The brain is wrapped in three connective tissue membranes for protection. The outermost, tough fibrous one of these meninges is called what?
APiamater
BArachnoid membrane
CCorpus callosum
DDuramater
Answer & Solution
Correct answer: D. Duramater
1. The meninges are three layers, and the question asks for the outermost.
2. Piamater is the innermost delicate layer, ruling out option A.
3. The arachnoid is the middle web-like layer, and corpus callosum is not a meninx, ruling out options B and C.
4. The tough outermost membrane is the duramater, option D.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 15 Nervous System "Central Nervous System", p.228_
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