Lab 1 Structures Flashcards
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
parahippocampal gyrus
functions? lobe?
- plays large role in memory and learning
- limbic lobe
hippocampus
functions? lobe?
- memory
- lies deep within parahippocampal gyrus
- limbic lobe
occipitotemporal gyri
functions?
- assists with processing of color information
- face/body recognition
- word recognition
uncus
functions? lobe?
- role in charged behaviors
- structure can herniate through tentorial notch with high ICP
- limbic lobe
amygdala
functions? lobe?
- lies deep within uncus
- involved with emotional memories
- structure can herniate through tentorial notch with high ICP
- limbic lobe
subcallosal area
functions? lobe?
- associated with mood and affective behaviors
- limbic lobe
central sulcus
divides frontal and parietal lobe
lateral sulcus
divides frontal and temporal lobe
parietal-occipital line
imaginary line between pre-occipital notch and superior aspect of parietal-occipital sulcus
cingulate sulcus
yellow → marginal branch of cingulate sulcus
parieto-occipital sulcus
calcarine sulcus
isthmus of cingulate gyrus
parahippocampal gyrus
