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Details

MCB 63
final
39
Other
Not Applicable
08/06/2007

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Cards

Term
anterior and preoptic nuclei of the hypothalamus
Definition
responsible for heat dissipation
Term
posterior nucleus of the hypothalamus
Definition
responsible for heat conservation
Term
VPL
Definition
ventro-posterior lateral nucleus of the thalamus - gets all touch information as well as some pain and temperature information -> associated with dorsal columns and spinothalamic pathways; associated with areas 3,1&2
Term
ventral anterior nucleus
Definition
gets information from basal ganglia; assocated with area 6 (responsible for planning movement)
Term
lateral geniculate body
Definition
associated with sensory information from the eye (vision)
Term
medial geniculate body
Definition
associated with auditory information
Term
dorsomedial nucleus
Definition
samples information leaving the thalamus; plays a role in individual processing (area cut during lobotomy)
Term
ventromedial nucleus of the hypothalamus
Definition
inhibits appetite --> damage will cause hyperphagia; individual will keep eating until organs rupture

inhibits rage --> lesions with produce symptoms of anger
Term
lateral nucleus of the hypothalamus
Definition
stimulates appetite --> damage results in hypophagia/aphagia (loss of appetite)

responsible for anger/rage --> stimulation produces symptoms of anger; lesions produce very placid behavior
Term
areas 3,2 & 1
Definition
primary (somato)sensory area of the neocortex; receives all information concerning touch, pain, temperature, and taste
Term
area 4
Definition
primary motor cortex --> involved in initiating movement

gets information from area 6
Term
area 6
Definition
premotor cortex --> serves as an advisor to area 4; takes information from basal ganglia, cerebellum, sensory areas, and integrates it before sending to area 4

plans movement in every possible direction
Term
area 8
Definition
frontal eyefiels --> coordinate eye movements
Term
areas 44, 45 and 46
Definition
Broca's area --> control all facial activity; left hemisphere is responsible for the motor component of speech, while and analogous structure in the right hemisphere gives speech its tone, inflection, and character
Term
areas 9,10, and 11
Definition
prefrontal cortex - the most primitive of neocortical areas

involved in individality and personality; provides inhibitions on reflexes
Term
areas 18 and 19
Definition
visual association areas (get information from area 17)
Term
area 22
Definition
Wernicke's area - helps to determine sounds from auditory information --> usually associated with the left hemisphere (left handed people have it in both hemispheres)

left side is associated with logic; right side is associated with more abstract interpretive properties
Term
area 39
Definition
the association area of association areas
Term
layer 4
Definition
composed of small stellate neurons

all information coming into the cortex synapses here

distributes information to other layers
Term
layer 5
Definition
mostly composed of pyramidal neurons

exports information from the cortex
Term
corona radiata
Definition
white matter in the cerebral cortex
Term
corpus striatum
Definition
refers to putamen and caudate nucleus together
Term
lentiform nucleus
Definition
refers to putamen and globus pallidus together
Term
Huntington's disease
Definition
symptoms: random and continuous choreiform movements, decrease in muscle tone, reflexes and sensations are unaffected

cause: atrophy of corpus striatum
Term
Parkinson's disease
Definition
symptoms: resting tremor, plastic rigidity, increase in muscle tone, difficulty moving, mask-like expression

cause: degeneration of substantia nigra (in 90% of cases), corpus striatum, frontal cortex
Term
corpus callosum
Definition
band of white matter that connects the two cerebral hemispheres
Term
Korsakoff's syndrome
Definition
damage to the mammillary bodies --> individuals have difficulty retaining new information
Term
damage to the hippocampus
Definition
individuals have difficulty retaining new information and recalling old memories
Term
amygdala
Definition
sits close to the hippocampus -> associated with learning, memory; formation of anger, rage, and other emotions
Term
hippocampus
Definition
integration area -> deals with association properties of sensory and motor information; stores information into one useful memory

kind of like a card catalogue of memory

3 layers of cells
Term
entorhinal cortex
Definition
four layers of cells
Term
parahippocampal gyrus
Definition
five layers of cells
Term
dentate gyrus
Definition
layer in the hippocampus composed of granule cells
Term
cortical blindness
Definition
stroke in the posterior cerebral artery
Term
choroid plexus
Definition
sits in the lateral, third, and fourth ventricles

produces corticospinal fluid

corpus callosum sits along the top of it
Term
falx cerebri
Definition
area of dura mater that goes in between the cerebral hemispheres

sits on top of corpus callosum
Term
anterior lobe of the cerebellum
Definition
involved in muscle tone, keeps the muscles contracted
Term
posterior lobe of the cerebellum
Definition
involved in free movement and planning

plans every possible motion
Term
flocculo-nodular lobe
Definition
involved in equilibrium and posture
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