Frontal Lobe test 2 Flashcards
(27 cards)
What is the purpose or function of the Premotor region?
The primary activation of complex motor acts
What pathology is associated with the Premotor region? Describe that pathology.
Ideomotor apraxia- the inability to imitate gestures
What area is the precentral gyrus?
Area 4
What is the purpose or function of the precentral gyrus?
- “Motor strip”
- Primary activation of simple motor acts
- contains the primary motor cortex
What area is the supplementary motor area (SMA) in?
Areas 6 and 8
What is the purpose or function of the supplementary motor area?
- internally generated movement (prepping for the actual movement)
- planning and rehearsal of the motor act
- decision-making
What area is the superior frontal gyrus in?
Areas 6, 8, 9
What is the purpose or function of the superior frontal gyrus?
- Motor planning
- premotor region
- occulomotor control (area 8)
What pathology is associated to the superior frontal gyrus?
Occulomotor apraxia
What area is that orbitofrontal cortex in?
Areas 10, 11, 47
What is the purpose or function of the orbitofrontal cortex?
- memory and intellect
- emotion and mood
- decision-making
- reward expectation
- social adjustment
- Drive and responsibility
What pathology is associated with the orbitofrontal cortex? Describe that pathology.
Introspective agnosia-Not comprehending body responses
What areas consists of Brocas area?
Areas 44 and 45
What is the purpose or function of Brocas area?
- critical for motor planning of speech
- expressive language in the dominant hemisphere
What pathology is associated with Brocas area?
Brocas aphasia-Nonfluent aphasia
What area is Pars Triangularis in?
Area 45
What is the purpose or function of Pars Triangularis?
Expressive language function
What area is Pars Opercularis in?
Area 44
What is the purpose or function of Pars Opercularis?
Overlies the insula
What area is the Pars Orbitales in?
Area 47
What is the purpose or function of Pars Orbitales?
Risk aversion
What three sections does the inferior frontal gyrus consist of?
- Pars Orbitales
- Pars Opercularis
- Pars Triangularis
What is the purpose or function of the inferior frontal gyrus?
Risk aversion and addiction resistance
What is another name for the middle frontal gyrus?
Dorsolateral prefrontal cortex
