Which of the following is a part of the dura mater.

a. internal periosteum of the bony cranium

b. the falx cerebri

c. falx cerebelli

d. all of the above

e. b and c only

Option e, b and c only

Explanation:

Both falx cerebri and falx cerebelli are part of the dura mate (which is one of the layer of meninges tissue that cover the brain and lie below the skull).

The largest fold with in dura mater is known as falx cerebri. It is of crescent shape and it separates the hemispheres of the cerebrum. While falx cerebelli is a small fold of dura mate which takes the shape of sickle and separates the lobes of the cerebellum.

Hence, option E is correct