Term
| what is the frontal lobe responsible for? |
|
Definition
| executive functions, prob solving, concentration |
|
|
Term
| front brain function? back? |
|
Definition
front - motor
back - sensory
(generally) |
|
|
Term
| where is broca's area? what does it do? |
|
Definition
on dominant-responsible side of brain (left) in front of the precentral gyrus.
responsible for speech production |
|
|
Term
| where is wernicke's area? what does it do? |
|
Definition
on dominant-responsible side of brain (left) behind postcentral gyrus.
receives language info |
|
|
Term
| what does the cingulate gyrus control? |
|
Definition
|
|
Term
| what is the sulcus in the occipital lobe? what does the surrounding tissue do? |
|
Definition
| calcarine sulcus - surrounding tissue is the visual cortex |
|
|
Term
| function of mammillary bodies? |
|
Definition
|
|
Term
| what makes up the gray matter walls of the 3rd ventricle? |
|
Definition
|
|
Term
| what makes up a midbrain cross-section? |
|
Definition
| (dorsal to ventral) - colliculi, aquaduct, red nucleus (black-appearing), substantia nigra, cerebral peduncles |
|
|
Term
| what makes up the mid-medulla cross-section? |
|
Definition
| olives and pyramids, looks like a bat |
|
|
Term
| how do you differentiate spinal cord x-sections? |
|
Definition
cervical - largest, gray matter is 3-pronged
thoracic - eyes in gray matter
lumbar - H-gray matter
sacral - shamrock-gray matter |
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|
Term
| which is motor/sensory between ventral and dorsal horns of spinal cord? |
|
Definition
ventral - motor
dorsal - sensory |
|
|
Term
|
Definition
| choroid plexus in lateral ventricles --> 3rd ventricle --> cerebral aquaduct --> 4th ventricle --> subarachnoid space or central canal |
|
|
Term
| what part of the brain does the circle of willis surround (ventral view)? |
|
Definition
| diencephelon and midbrain |
|
|
Term
| what makes up the circle of willis? |
|
Definition
| anterior cerebral, anterior communicating, middle cerebral, posterior communicating, posterior cerebral |
|
|
Term
| what does the ACA supply? |
|
Definition
| medial aspect of frontal and parietal lobes --> which serve the lower extremity (brain midline = lower extremity) |
|
|
Term
| what does the MCA supply? |
|
Definition
basal ganglia and internal capsule through deep penetrating arteries.
lateral aspect of brain --> motor and sensory for upper extremity, head, neck, trunk; broca's area (language motor), wernecke's area (language reception) |
|
|
Term
| what does the PCA supply? |
|
Definition
| temporal and occipital (vision) lobes |
|
|
Term
| what supplies the thalamus? |
|
Definition
|
|
Term
| what supplies the midbrain? |
|
Definition
|
|
Term
|
Definition
| AICA and paramedian/pontines, both off of the basilar |
|
|
Term
| what supplies the mid-medulla? |
|
Definition
| PICA, vertebral, and anterior spinal off of the two vertebral arteries |
|
|
Term
| what supplies the caudal medulla? |
|
Definition
| two posterior spinals, two vertebrals, one anterior spinal artery |
|
|
Term
| what's the risk of having only one anterior spinal artery? |
|
Definition
| if lost, can lose bilateral motor ability (b/c it supplies bilateral ventral spinal cord gray matter) |
|
|
Term
| what supplies the cerebellum? |
|
Definition
| superior cerebellar, AICA and PICA |
|
|
Term
| what is the pathway from sight to brain? |
|
Definition
| eye, optic nerve, optic chiasm, optic tract, lateral geniculate nucleus (thalamus), optic radiations, primary visual cortex (in occipital love) |
|
|
Term
| what is the sulcus in the occipital lobe? what is above/below? function? |
|
Definition
calcarine sulcus.
cuneus - above, responsible for lower half of visual field
lingula - below, responsible for upper half of visual field |
|
|
Term
| what are the two types of retinal axons? |
|
Definition
nasal - central, cross at chiasm
temporal - lateral, don't cross |
|
|
Term
| where does the Meyer's loop fibers synapse? |
|
Definition
| lingula (upper field of vision) |
|
|
Term
| what is argyll-robertson pupil? |
|
Definition
can't constrict in response to light.
pupil is small and can constrict by accomodation.
aka tertiary syphillis |
|
|
Term
| what is the uncus? function? |
|
Definition
| the medial protrusion of the temporal lobe; olfactory function |
|
|
Term
| in what lobe is the hippocampus? function? |
|
Definition
in the temporal lobe.
function = short term memory |
|
|
Term
| what are the three unpaired CNS vessels? |
|
Definition
| basilar, anterior spinal, anterior communicating |
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