Cerebrum: Surface Features Flashcards
separates primary motor (anterior) and sensory (posterior) cortexes for lower extremity
Central sulcus
separates frontal and parietal lobes from temporal lobe; insular cortex located deep inside
lateral fissure
primary motor cortex (Area 4)
precentral gyrus
prefrontal cortex and premotor cortex; supplementary motor cortex medially
superior frontal gyrus
prefrontal cortex, premotor cortex and visual eye movement (voluntary)
middle frontal gyrus
speech formulation (motor)
left inferior frontal gyrus
expression of speech (motor)
right inferior frontal gyrus
rostral to caudal: orbital, triangular, opercular
three parts of inferior frontal gyrus
located anterior to central sulcus; involves motor, premotor, prefrontal and motor speech; executive area of the cerebrum
frontal lobe
attention, motivation (apathy, ambition, sense of responsibility), planning, problem solving, control of behavior, working memory (short-term or intermediate)
prefrontal cortex
primary sensory cortex
postcentral gyrus
sensory association cortex
superior parietal lobule
multimodal association cortex (integration of touch, vision, auditory info)
inferior parietal lobule
receptive aspect of language
supra marginal and angular gyri of inferior parietal lobule
somatosensory association cortex; multimodal association cortex; concerned with what and where
parietal lobe
primary and association visual cortex
occipital lobe
visual association cortex
lateral occipital gyri
primary and association auditory cortex; memory; concerned with what
temporal lobe
auditory association cortex
superior temporal gyrus
comprehension of language, usually on the left side of superior temporal gyrus
Wernicke’s Area (Area 22)
memory storage (declarative memory)
middle and inferior temporal gyri
consists of long and short insular gyri (long caudal, short rostral)
insula
primary auditory cortex
transverse temporal gyri
visceral (olfactory, tast, pain) association cortex
insular gyri (long and short)
motor (anterior) and sensory (posterior) for lower extremity
paracentral lobule
medial side of superior parietal lobule; somatosensory association cortex
precuneus
part of limbic lobe; rostral portion serves as PRIMARY OLFACTORY AREA
parahippocamal gyrus
contains amygdaloid nucleus; involved with emotional memory
uncus
lower field vision
cuneus
primary visual cortex; separates cuneus and lingual gyrus
calcarine fissure
upper field vision
lingual gyrus
rostral end of developing CNS; immediately rostral to hypothalamus in medial view
lamina terminalis
separates two lateral ventricles; in between corpus commissure and fornix
septum pellucidum
connects two cerebral hemispheres
corpus commissure
connects temporal loves of two hemispheres
anterior commissure
interventricular foramen
connects lateral and third ventricles
sensory, motor and association nuclei; interpret/moderate input
thalamus
regulation of pituitary gland and ANS
hypothalamus
melatonin; circadian rhythm and sleep-wake cycle
pineal body
