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CBSE Notes 2011-2012 » Forums » Open Discussion

HUMAN BRIAN

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MJ
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Joined: 30/11/2007

BRIAN IS A PART OF CNS(CENTRAL NERVOUS SYSTEM).IT IS ALSO KNOWN AS ENCEPHALON SITUATED IN THE HEAD.THE BRIAN IS THE HIGHEST COORDINATING CENTRE IN THE BODY.IT IS SITUATED IN YHE CRANIAL CAVITY OF THE SKULL.THE STUDY OF BRIAN IS CALLED ENCEPHALOGY.THE BRIAN IS SOFT,WHITISH ORGAN.IT HAS 100 BILLION NEURONS.BRAIN IS SURROWNDED BY THREE MAMBRANES CALLED MENINGES.THE SPACE BETWEEN THREE MENINGS IS FILLED WITH CEREBRO-SPINAL FLUID WHICH PROTECT THE BRAIN FROM MECHANICAL SHOCKS.IT IS DIVIDED IN TO THREE PARTS.
1.)FORE BRAIN(OLFACTORY LOBES, CEREBRAL HEMISPHERES,DIECEPHALON)
2.)MID BRAIN(THE MID BRAIN CONTROLS REFLEX MOVEMENTS OF HEAD, NECK, TRUNK AND EYE MUSCELS )
3.)HIND BRAIN(CEREBELLUM, PONSVAROLII, MEDULLA OBLONGATA)

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stay calm and cool.
do not hazitate

MJ
MJ's picture
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Joined: 30/11/2007
SO BORING.............

I HAVE NOTHING TO DO..............

stay calm and cool.
do not hazitate