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53 Cards in this Set

  • Front
  • Back
the floor of the cerebrum
corpus callosum
frontal lobe functions
learned behavior, motor cortex
structures in the frontal lobe
central sulcus
lateral cerebral sulcus
precentral gyrus
precentral gyrus function
primary motor cortex
structures in the parietal lobe
postcentral gyrus
parieto-occipital sulcus
postcentral gyrus function
primary somatosensory cortex
temporal lobe functions
primary auditory cortex
occipital lobe functions
primary visual cortex
calcarine fissure divides:
cuneate gyrus (superiorly) from the lingual gyrus (inferiorly)
insula functions
taste and other visceral functions
limbic lobe functions
vital survival portion of the brain, memory
basal nuclei (ganglia)
cell bodies deep within the cerebrum
associated with movement
diencephalon is/contains
cell bodies deep within the cerebral hemispheres
-thalamus
-hypothalamus
-subthalamus
-epithalamus
thalamus function
major sensory relay nucleus
hypothalamus function
link of nervous system and endocrine system, visceral functions
subthalamus functions
motor movement
epithalamus contains/function
pineal gland
day/night cycles
hippocampus and amygdala functions
-phyogenetically ancient cortical structure
-in temporal lobe
-role in memory consolidation and control of ANS function in relation to previous experience
separates cerebrum and cerebellum
transverse fissure
white matter tracts in the cerebellum are:
superior, middle and inferior peduncles
superior peduncle
connects cerebellum to midbrain and cerebrum
middle peduncle
connects cerebellum to pons
inferior peduncle
connects cerebellum to medulla and spinal cord
brainstem consists of:
midbrain (mesencephalon)
pons (metencephalon)
medulla (myelencephalon)
midbrain consists of:
crus cerebri (anteriorly)
tegmentum - CNN III and IV
tectum - corpora quadrigemina posteriorly
--superior and inferior colliculi
pons consists of
basis pontis - crossing fibers of the middle cerebellar peduncle
pontine tegmentum - CNN V-VIII
medulla consists of
pyramids and olives (anterior)
gracile and cuneate tubercles (posterior)
CNN IX-XII (exception XI)
CN I and II are tracts of the
diencephalon
internal carotid artery supplies
anterior circulation - 80% of blood supply to cortex
internal carotid artery branches
-anterior cerebral a
-middle cerebral a
-posterior communicating a
anterior cerebral artery supplies
medial aspect of the frontal and parietal lobes and medial sensorimotor cortex
-anterior communicating a
middle cerebral artery supplied
virtually entire lateral surface of the cerebral hemispheres
-superior and inferior divisions
superior division of the middle cerebral a supplies
cortex above the lateral fissure
-lateral and frontal cortex including precentral and postcentral gyri
inferior division of the middle cerebral a supplies
cortex below the lateral fissure
-lateral temporal lobe, parts of the parietal lobe
Watershed zones are
regions of the cortex between 2 cerebral vessels
- infarcts with severe drops in systemic bp
vertebral - basilar system supplies
posterior circulation, 20% of cortex supply
vertebral a branches
-posterior spinal a
-anterior spinal a
-posterior inferior cerebellar a (PICA)
basilar a branches
-anterior inferior cerebellar a (AICA)
-superior cerebellar a
-pontine aa
-bifurcation makes posterior cerebral a
posterior spinal a
runs caudally on the dorsolateral sulci of the spinal cord
-reinforced by parietal brs as they descend
anterior spinal a
-joins partner from opposite side to for a single a
-along ventral midline of the sc
-paramedian brs supply medial caudal medulla
-reinforced by parietal brs as it descends
posterior inferior cerebellar a supplies
inferior surface of the cerebellum, choroid plexus, lateral medulla
anterior inferior cerebellar a supplies
anterior, inferior surface of cerebellum and caudal lateral pons
superior cerebellar a supplies
superior surface of the cerebellum, caudal midbrain (tectum) and rostral pons
pontine arteries branches and supply
-paramedian branches supply medial pons
-circumferential branches supply lateral pons
posterior cerebral a supplies
midbrain, most of the thalamus, medial and inferior surfaces of the occipital and temporal lobes
the communication of the anterior and posterior circulations to the cerebrum and the brainstem
Circle of Willis
anterior communicating arteries joins
anterior cerebral aa
posterior communicating arteries joins
internal carotid aa with the posterior cerebral aa
great cerebral vein of Galen
lies midline behind the midbrain between the cerebrum and cerebellum
basal veins of Rosenthal
venous blood from the deep cerebral veins
-same names as the cerebral arteries
superior anastomotic vein of Trolard
recieves blood from the superficial middle cerebral vein
-drains superficial venous blood into superior sagittal sinus
inferior anastomotic vein of Labbe
recieves blood from superficial middle cerebral vein
-drains superficial venous blood into the confluence of sinuses posteriorly
bridging veins
drain venous blood from the surface of the brain, penetrate the arachnoid mater, then the dura mater to enter the dural venous sinuses