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BY
RS KUSHWAH
PROFESSOR ANATOMY
NSCB MC JABALPUR MP

 cerebrum is the uppermost region of the central
nervous system
 Largest part of brain/ forebrain
Cerebrum is heavily convoluted bilobed structure in
the form of two hemispheres devided by medial
logitudinal fissure but connected by corpus callosum
 Fissure having fold of dura mater falx cerebri
 Cerbrum consists of cereral cortex,white matter,basal
ganglia /basal nuceli and a cavity lateral ventricle

CEREBRUM
POLES - FRONTAL OCCIPITAL
,TEMPORAL
BORDERS –
SUPERIOMEDIAL,INFERIOMEDIAL,
INFERIOLATERAL
SURFACES –
SUPERIOMEDL,MEDIAL,INFERIOR-
(ORBITAL AND TENTORIAL)
LOBES – FRONTAL ,PARIETAL,
OCCIPITAL,TEMPORAL,INSULA,LIMB
IC
SULCI AND GYRI

 Motor areas
 Sensory areas
 Association areas (75%)
Brodmann classification- divide the cortex into 47
areas with specific number
 Representation of body parts over cortex-motor and
sensory homunculus
 Control of body parts -sameside or ipsilateral
-opposite side or contralateral
--cerebral hemispheric dominence

 Primary motor area /broadmann area no 4
 Premotor area /broadmann area no 6
 Supplementry motor area Msll
 Frontal eye field/ broadmann no 8
 Motor speech area of broca no 44 & 45
 Prefrontal area

 Primary sensory area no 3,1,2
 Secondry sensory area/ Smll
 Sensory association area( 5 &7)-stereognosis
 Sensory speech area of wernicke (39&40) –for
interpretation of language through auditory and visual
input

 Primary auditory area no. 41 and 42
 Secondry auditory area /auditory association area
no.22-word deafness

 Primary visual area / striate area no. 17
 Secondry visual /visual association area no. 18 and 19
OTHER AREAS- taste /gustetory no 43
vestibular.,
olfactory no 28

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Cerebrum

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