BRAIN STRUCTURE

Human brain is the most advanced and well developed of all animals. It is encased in a bony case called cranium or skull which protects it from external injuries.
The brain is covered with meninges.Between the meninges , the space is filled with cerebrospinal fluids.
These are
DURAMATER -It is the outer tough and fibrous membrane.
ARACHNOID -It is  a middle delicate membrane.
PIAMATER- It is inner thin and highly vascular membrane.
ENCEPHALOGY is the  study of structure , working and function of brain.
The brain is differentiated into three parts:Fore brain,Mid brain and Hind brain.

FOREBRAIN:

1. Olfactory lobes
2. Cerebrum
3. Diencephalon

MIDBRAIN

1. Cerebral peduncles
2. Corpora quadrigemina

HIND BRAIN

1. Cerebellum
2. Pons
3. Medulla

CSF : It occurs between piamater and arachnoid and cavities of brain and sppinal cord.The fluid is rich in nutrients, hormones and respiratory gases.It supplies food , oxygen and removes wastes from brain, carries hormones from the brain and protects CNS from shocks. It is filtered from the blood and passes back into the blood