BRODDMANN'S AREA

Front

AREA 4

Back

• - primary motor area

• - AKA: pre-central gyrus

• - FXN: execution of motor movement (C/L)

• -LESION: flaccidity

Front

AREA 6

Back

• - pre-motor area

• - AKA: secondary motor area/ motor association area

• - FXN: initiation of mvmt, modulation of mvmt, coordination of mvmt

• - LESION: akinesia, incoordination, tremor, spasticity

Front

AREA 8

Back

• - frontal eye field

• - FXN: conjugate eye mvmt

• -LESION: frontal gaze palsy

• Anterior circulation stroke syndrome

• .. internal carotid artery syndrome

• .. anterior cerebral artery (ACA)

• .. middle cerebral artery (MCA)

• - MANIFESTATION: head turning to lesion

-LESION: pontine gaze palsy

. posterior circulation syndrome

.. vertebro basilar artery

.. posterior cerebral artery (PCA)

-MANIFESTATION: patient looks away from the lesion

Front

AREA 9,10,11,12

Back

• - pre frontal areas

• - FXN: personality and behavior

• intelligence

Front

AREA 44,45

Back

• - Broca's area

• -LOC: inferior frontal gyrus (snell book)

• third frontal convolution (sullivan book)

• motor speech area

• - LESION: broca's aphasia

• OTHER NAMES:

• .. non-fluent aphasia

• .. anterior aphasia

• .. motor aphasia

• .. expressive aphasia

• (-) fluency

• (+) comprehension

Front

AREA 3,1,2

Back

• - Primary sensory area

• - AKA: postcentral gyrus

• - FXN:

• .. it receives all general sensations (pain, temp, touch, vibration, proprioception)

• .. It interprets the pain and temp only

• - LESION: C/L anesthesia

Front

AREA 5,7

Back

• - secondary sensory area

  - AKA: sensory association area

  - FXN: it interprets general sensations except for pain and temp

  EX:

  .. STEREOGNOSIS - palpatory sense

  .. GRAPHESTHESIA - ability to identify trace/ written on skin

  .. BAROGNOSIS - weight sense

  .. PALLESTHESIA - vibratory sense

  .. PROPRIOCEPTION - position sense

  .. KINESTHESIA - mvmt sense

  .. 2 POINT DISCRIMINATION

  .. LIGHT TOUCH SENSATION

Front

AREA 39

Back

• - angular gyrus

  • - FXN: naming, writing, reading, R&L orientation, mathematical ability

  • - LESION: gertsmann syndrome (I have gertsmann the left and the right, finger agnosia, agraphia, acalculia 1,2,3, area 39 angular)

Front

AREA 40

Back

• - supramarginal area

• - FXN: L broddman area 40

  .. assists in the comprehension of language

  .. LESION: ideomotor apraxia (upon command he can't execute task)

• - FXN: R broddman area 40

  .. tactile sensation

  .. LESION: astereognosis/ tactile agnosia (impaired palpatory sense)

Front

AREA 43

Back

- Primary gustatory area

- AKA: taste area

- FXN: interprets taste

- LESION: ageusia (loss of taste sensation) even the CN7,CN9 is intact (vice versa)