Lab 1 Structures Flashcards
(38 cards)
precentral gyrus
Brodmann’s area? functions? lobe?
- 4 (primary motor cortex)
- execution of movement (distal muscles)
- frontal lobe
superior frontal gyrus
Brodmann’s area? functions? lobe?
* 6 (lateral pre-motor area)
* motor programming
* sensory guidance of limb movements
* initiation and sequencing of movements
* frontal lobe
* dorsolateral premotor
* ventrolateral premotor
| superior frontal gyrus → entire highlighted section
dorsolateral premotor
functions? lobe?
- plan selection
- frontal lobe
ventrolateral premotor
functions? lobe?
- visually guided grasping (wrist positioning)
- frontal lobe
middle frontal gyrus
associated area? functions? lobe?
* frontal eye fields (posterior region of middle gyrus)
* voluntary eye movements/conjugate gaze
* frontal lobe
| middle frontal gyrus → entire highlighted section
inferior frontal gyrus
Brodmann’s area? functions? lobe?
* 44 (pars opercularis)
* 45 (pars triangularis)
* 44, 45 (Broca's Area)
* associated with motor aspects of speech
| inferior frontal gyrus → entire highlighted section
prefrontal area
functions? lobe?
- anterior region of frontal lobes
- associated with executive functions (thinking, judgement, perceptions) and motor planning
- frontal lobe
- dorsolateral prefrontal
- ventrolateral prefrontal
dorsolateral prefrontal
functions? lobes?
- task switching, working memory, inhibition
- frontal lobe
ventrolateral prefrontal
functions? lobes?
- risk/reward
- motivation
- threat detection
- frontal lobe
postcentral gyrus
Brodmann’s area? functions? lobe?
- 3, 1, 2 (primary somatosensory area)
- somatotopical arrangement based on body regions
- parietal lobe
superior parietal lobule
association area? functions? lobe?
- sensory association area (posterior parietal area)
- integrates sensory and motor functions and aids in programming complex motor functions with premotor cortex
- parietal lobe
inferior parietal lobule
gyri? function? lobe?
* supramarginal gyrus
* angular gyrus
* receive input from auditory and visual cortices and perform higher complex perceptions and spatial relations
* dominant in left hemisphere
* parietal lobe
| inferior parietal lobule → entire highlighted section
lateral occipital gyrus
Brodmann’s area? association areas? functions? lobe?
* 17 (primary visual cortex)
* visual association areas (anterior portion of lobe)
* organize/integrate visual stimuli
* occipital lobe
| lateral occipital gyrus → entire highlighted section
superior temporal gyrus
Brodmann’s area? functions? lobe?
* 22 (Wernicke's area)
* understanding speech/speech perception
* temporal lobe
| superior temporal gyrus → entire highlighted section
transverse temporal gyri of Heschl
Brodmann’s area? functions? lobe?
- 41, 42 (primary auditory cortex) → hearing
- auditory association area → speech/language comprehension
- temporal lobe
middle temporal gyrus
functions? lobe?
- associated with perception of moving objects in visual field
- memory
- temporal lobe
inferior temporal gyrus
functions? lobe?
- recognition of faces
- memory
- temporal lobe
paracentral lobule
functions?
- primary motor for LE (in pink)
- primary somatosensory for LE (in purple)
- bisected by central sulcus (in red)
- most anterior aspect is supplemental premotor area (in blue)
superior frontal gyrus
Brodmann’s area? functions?
- 6 (supplemental premotor area)
- motor programming
- selection of motor programs
cingulate gyrus
functions? lobe?
- emotions and drive
- limbic lobe
precuneus
association areas? functions?
- sensory association area
- anterior border → marginal branch of cingulate sulcus
- posterior border → parieto-occipital sulcus
cuneus
Brodmann’s area? association areas? functions?
- 17 (primary vision) → upper/lower banks of calcarine sulcus (striate cortex)
- vision association area (extrastriate cortex) → on either side of primary vision
olfactory tract and bulb
functions?
- sense of smell
- associated with CN I
orbital gyri
functions?
- prefrontal areas associated with limbic lobe
