Brodmann Areas Flashcards
BA 4 Primary Motor area fxn
“Precentral gyrus”
Execution of motor function
Lesion of BA 4
Flaccidity
BA 6: Premotor area fxn
“Secondary Motor area”
Refinement, initiation, modulation, coordination of movement
Lesion of BS 6
Spasticity, akinesia, incoordinaiton
BA 8: Frontal eye field fxn
conjugate eye movements
Lesion of BA 8
Frontal gaze palsy; head turning to lesion to compensate
BA 9, 10, 11, 12: Prefrontal areas
“seat of intelligence”
personality and behavior
BA 44 and 45: Broca’s Area fxn
“Motor Speech Area”
Location of BA 44 and 45
Third frontal convolusion
Lesion of BA 44 and 45
Broca’s aphasia
IMPAIRED:
naming, fluency, repetition, writing
INTACT:
reading and auditory comprehension
Broca’s Aphasia other names?
Naming aphasia
Anterior aphasia
Motor aphasia
Expressive aphasia
BA 3, 1, 2: Primary sensory/somesthetic area fxn
“postcentral gyrus”
interprets pain and temperature
Lesion of BA 3, 1, 2?
Anesthesia
BA 5 and 7: Secondary Sensory Area fxn
Interprets sensation other than pain and temperature (proprioception, kinesthesia, barognosis, 2 pt discrimination, vibration)
BA 39: Angular gyrus fxn
L and R orientation
Math ability
reading, naming, writing
Lesion of BA 39?
Gertsman syndrome
- impaired L and R discrimination
- finger agnosia
- agraphia s alexia
- acalculia
BA 40: Supramarginal gyrus
Assist with language processing and comprehension
Lesion in BA 40
Ideomotor apraxia
BA 43: Gustatory Area fxn
sense of taste
Lesion in BA 43?
Agnosia, ageusia
BA 17: Primary visual area
“Striate cortex”
sense of sight
Lesion in BA 17?
unilateral: C/L homonymous hemianopsia
bilateral: cortical blindness
BA 18 and 19: Secondary Visual area fxn
Interprets images perceived by BA 17
BA 18 and 19 lesion?
Visual agnosia (prosopagnosia), color agnosia (dyschromatopsia), Balint’s syndrome
