Brodmann Areas Flashcards
Confined to the precentral gyrus of the frontal lobes
Area 4
No other single area contributes more fibers to the pyramidal system than does this
Precentral gurus…Area 4
Voluntary motor initiation especially in the distal extremities
Area 4
Voluntary motor initiation in the facial and oral musculature
Area 4
Only area to contain the Giant Pyramidal (Betz) Cells
Area 4
Contain well developed projection laminae (V and VI)
Area 4 and 123
Sends projections to the basal ganglia, pontine nuclei, reticular formations, red nucleus, superior colliculus, vestibular and inferior olivary nuclei as well as all brainstem nuclei
Area 4
Primary motor cortex
Area 4
Post central gurus
Area 123
Somesthetic cortex
Area 123
Pain, thermal, deep touch, light touch, vibratory and kinesthetic input
Area 123
Integrates conscious sensation
Area123
Premotor cortex
Area 6 and 8
Subtly contributes pyramidal fibers to the voluntary motor initiating pathways
Area 123
Located just in front of area 4
Area 6 and 8
Good motor initiating centers contributing fibers directly and indirectly to the pyramidal system
Areas 6 and 8
Influences the proximal portions of our extremities
Area 6
Initiates voluntary movement of our eyes
Area 8
Prefrontal region
Area 9 10 11 12
Prefrontal cortex
Area 9 10 11 12
Anterior restraint most parts of the frontal lobe
Area 9 10 11 12
Newest of the neopallial structures
Area 9 10 11 12
Associated with laminate II and III ( associative cortex)
Area 9 10 11 12
Greatest elaboration of thought occurs
Area 9 10 11 12
Abstract reasoning, imaginative, emotional response
Area 9 10 11 12