Question

Use words from the given list to complete the following paragraph. The words may be used once/more than once/not at all.
(Skull, Vertebral column, Piamater, Arachnoid membrane, Brain, Spinal cord, Meninges, Duramater).
The central nervous system is covered by three protective coverings collectively called _____. The outermost cover lying below the ______ and ______ is double thick and is called ____. The middle covering is thin and vascularised and is called _______. The innermost cover is a very thin delicate membrane and is closely stretched over the outer surface of _____and ____ and is called _______.

Answer 1

The central nervous system is covered by three protective coverings called meninges. The outermost cover lying below the skull and vertebral column is double thick and is called duramater. The middle covering is thin and vascularised and is called arachnoid membrane. The innermost cover is a very thin delicate membrane and is closely stretched over the outer surface of brain and spinal cord and is called piamater.