Brain Blood Supply Flashcards
Purpose of sulci and fissues
increases surface area which increases connectiity
longitudinal fissure
between right and left cerebral hemispheres
corpus callosum
connects cerebral hemispheres
lateral fissure
lateral surface of cerebral hemisphers, between cerebral hemispheres and temporal lobe
transverse fissue
between cerebral cortex and cerebellum
where is the great vein of galen located
on top of cerebellum near transverse fissue
main functino o ffrontal lobe
motor, goal-oriented, motivation, language, higher reasoning
main function of parietal lobe
somatosensory cortex
main functino of temporal lobe
primary auditory cortex
main functino of occipital lobe
visual cortex
lateral sulcus
separates frontal from parietal and temporal loves
central sulcus
separates frontal and parietal lobes
precentral gyrus function
motor
postcentral gyrus function
sensory
where is calcarine sulcus located
within occipital lobe
functino of calcarine sulcus
primary visual cortex
where is insula
see by peeling apart lateral fissure and looking beneath frontal and temporal lobes
functino of insula
visceral (gut sense)
what is the limbic lobe consist of
cingulate gyrus
uncus
parahippocampal gyrus
ganglia
cell body outside of CNS
nuclei
cell body in the CNS
basal nuclei
collections of nuclei in cerebral cortex involved with motor functions
diencephalon
collection of nuclei in a central position in brain
thalamus
relays sensory information
hypothalamus
connects CNS with endocrine system
subthalamus
motor function
epithalamus (pineal gland)
circadian rhythm, day/night cycle, melatonin relase
hippocampus and amygdala is part of _____
limbic system
function o fhippocampus
memory, spatial navigation
function of amygdala
survival (fear, aggression)
what are the 2 hemispheres of the cerebellum separated by
vermis
function of cerebellum
motor, balance
functino of pyramids
motor tracts
what is the 4th ventricle
space behind superior cerebellar peduncles
function of superior colliculi
visual
function of inferior colliculi
aduitory
what does MOST of the brains anterial supply
anterior circulation
what is the first branch of the internal carotid
opthalmic a
where is anterior cerebral a located
runs in longitudinal fissure over corpus callosum
what does anterior cerebral a supply
medial aspect of brain, but not the occipital lobe
where is internal carotid located
near lateral fissure
where is the middle cerebral a located
runs in lateral fissure
what does middle cerebral a supply
insulia
what does superior middle cerebral supply
frontal and parietal lobe
what does inferior middle cerebral supply
temporal and pariteal lbe
watershead territories
regions at border of regino supplied by middle cerebral a in which anterior and middle crebral a anastomose by tiny capillaries
what branches does the vertbral a give off
anterior spinal a
posterior spinal a
PICA
what does anterior spinal a supply
spinal cord parts of brainsteam
what branches does the basiliar a give off
pontine
AICA
superior cerebellar
posterior cerebellar (terminal branch)
what does the posterior cerebral a supply
inferior temporal lobe and medial occipital lobe
where is teh calcarine branch of posteiror cerebral a located
near visual cortex
basal beins of rosenthal
drains venous blood around brainstem
superior anastomotic vein of trolard adn inferior anastomotic vein of labbe functino
aid in draining blood from brain surface
bridging veins
locatedunder superior sagittal sinus. help connect the anastomotic veins. likely to rip under dura
