brain structures Flashcards
central sulcus
separates primary motor and sensory cortexes
lateral sulcus
insular cortex located deep inside
Frontal lobe
motor premotor prefrontal motor speech executive area
precentral sulcus
separates precentral gyrus from frontal gyri
precentral gyrus
primary motor cortex
superior frontal gyrus
prefrontal cortex and premotor cortex
middle frontal gyrus
prefrontal cortex premotor cortex and visual eye movements (voluntary)
inferior frontal gyrus
motor speech
parietal lobe
somatosensory association cortex multimodal association cortex concerned with ‘What’
postcentral sulcus
separates postcentral gyrus from superior and inferior parietal lobules
postcentral gyrus
primary sensory cortex
intraparietal sulcus
separates superior and inferior parietal lobules
superior parietal lobule
sensory association cortex
inferior parietal lobule
multimodal association cortex
Temporal
primary and association auditory cortex
memory and concerned with ‘what’
superior temporal gyrus
auditory association cortex
middle and inferior temporal gyri
memory storage
occipital lobe
primary and association visual cortex
lateral occipital gyri
visual association cortex
preoccipital notch
site of separation between occipital lobe and parietal lobe when cerebrum is viewed laterally
parieto-occipital fissure
separates parietal lobe from occipital lobe, best seen from medial view
Transverse temporal gyri
primary auditory cortex
insular gyri
visceral (olfactory, taste, pain) association cortex
subcallosal area
part of the limbic system
paracentral lobule
motor and sensory for lower extremity
percuneus
medial side of superior parietal lobule, somatosensory association cortex
parahippocampal gyrus
part of limbic lobe, rostral portion serves as primary olfactory area. hippocampal formation located medially
Uncus
contains the amygdaloid nucleus, involved with emotional memory
cuneus
vision lower field
calcarine fissure
separates cuneus and lingual gyrus
lingual gyrus
vision upper field
cingulate gyrus
limbic system
Lamina terminalis
rostral end of developing CNS
Septum pellucidum
separates the two lateral ventricles
corpus callosum
connects two cerebral hemispheres
anterior commissure
connects temporal lobes of two hemispheres
fornix
part of limbic, connects hippocampal formation to the septal area
interventricular foramen of monro
connects lateral and third ventricles
Limbic lobe
forms ring of tissue on the medial surface of the cerebral hemisphere. connects the neocortex and the hippocampal formation
parts of the diencephalon
thalamus, hypothalamus mammillary body, pineal body optic nerve chiasm posterior commissure third ventricle
thalamus
sensory, motor and association nuclei
hypothalamus
regulation of pituitary gland and ANS
Mammillary body
part of limbic circuit. termination of fornix
pineal body
melatonin
posterior commissure
connects pretectal area (visual reflexes
third ventricle
located between two thalami and hypothalami
Orbital gyri
overlie orbit, orbital portion of prefrontal cortex
parahippocampal gyrus
hippocampal formation located medially, memory consolidation
Uncus
rostral end of parahippocampal gyrus, amygdaloid nucleus located within, emotional memory
Median eminence
hypothalamic area leading to infundibular stalk
infundibular stem
connection between pituitary gland and hypothalamus