Function of the Broadmen's Areas Part II Flashcards
primary cortex area
somatotopic organization
Size of areas is proportional to the degree of skill involved with movement
Broadmann’s Area 4
premotor cortex area
programming for movements
Electrical stimulation produces slower movements of larger groups of muscles compared to area 4
Broadmann’s Area 6
frontal eye field
Stimulation produces conjugate eye movement to contralateral side
Inferior part of Broadmann’s Area 8
supplementary motor area
Medial surface
Programming for complex movements involving several parts of the body
Parts of Broadmann’s Area 6 and 8
prefrontal cortex
Nearly 1/4 of all cortex
Orbitofrontal area functions in visceral and emotional activities
Dorsolateral area functions in intellectual activities such as planning, judgement, problem solving and conceptualizing
Broadmann’s Area 9,10,11,12,32,46,and47
Broca’s Area
Part of the inferior frontal gyrus
Functions in speech
Broadmann’s Area 44 and 45
Primary Somatosensory Area
Somatotopically organized
Areas of cortex proportional to sensory discrimination of the area not to the amount of surface area
Broadmann’s Area 3,1,2
Primary Gustatory Cortex
Anterior part of parietal operculum
Posterior part of Area 43 is the secondary somatosensory area however the somatotopy is poorly defined
Broadmann’s Area 43
parietal cortex association
7: input from visual and motor cortex
39&40: input from all association areas
function in hand performance
Broadmann’s Area 5,7,39,40
primary auditory cortex
Tonotopic organization
High frequency sounds posteromedial, and low frequency sounds anterolateral
Broadmann’s Area 41 and 42
auditory association cortex
Wernicke’s area (posterior part of 22)
Language understanding and formulation
Broadman’s Area 22
striate cortex, primary visual cortex
Macular vision in posterior part
Broadmann’s Area 17
occipital lobe
Receive visual info from area-17 bilaterally
Complex processing for color, movement, direction, visual interpretation
Broadmann’s Area 18 and 19
