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major divisions of CNS (Brain (HIND BRAIN (PONS, MEDULLA OBLONGATA*,…
major divisions of CNS
spinal cord
3 meninges
pia matter
arachnoid matter
Dura matter
It terminates as
conus medullaries
which further form
filum terminale
total 31 pairs of spinal nerves
formed by
1)
Anterior{motor roots}
2}
posterior root{sensory]
it posess
posterior root ganglion
Brain
FOREBRAIN
MID BRAIN
CEREBRUM
DIENCEPHALON
HIND BRAIN
PONS
MEDULLA OBLONGATA*
CEREBELLUM
CERVICAL SEGMENTS
1} CERVICA SEGMENT 2}THORASICSEGMENT3}LUMBARSEGMENT 4}SACRAL SEGMENT 5}COCCYGEAL SEGMENT
subarachnoid space between them
sub dura space
it contains cerebrospinofluid
its appex is prolongation of
pia matter
into the coccyx
attached by cord rootlets
MAJOR DIVISIONS OF PNS