Draw a neatly labeled diagram of Brain and write few points how it is protected. (AS5)

The labelled diagram of brain is given as:

In proportion to size, the human brain is the largest among all animals. The brain is a very delicate organ well protected inside the brain box (cranium) of the skull. The brain is protected by three membraneous coverings called meninges (meninx - membrane) which continue backward on the spinal cord.

1- Dura mater: The outermost tough fibrous membrane.

2- Arachnoid: thin delicate middle layer giving web like a cushion.

3- Pia mater: The innermost highly vascular membrane richly supplied with blood.

Meningitis is the inflammation of the meninges. The space between the covering membranes is filled with watery fluid - cerebrospinal fluid which acts like a cushion to protect the brain from shocks.