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NEUROANATOMY
Neuroanatomy of the brain
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ateralization of CorticalFunctioningeachhemispherehasabilitiesnotsharedbyotherhemispherestillcommunicate
cerebraldominancelanguagedominanthemisphere
90 ofpeople leftdominantfor languagemathlogic
rightdominant for visualspatialskillsintuitionemotion artmusic
left
cerebral dominance righthanded rightdominance lefthanded or ambidextrous
CerebralWhiteMatter
communication between cerebralareascortexlower Cns
commisuralfibersconnectcorrespondingareas between hemispheres
associationfibersconnectionwithinhemispheres
gyrilobes
projectionfibersbetweencortex and CNS vertical
BasalNuclei
Caudatenucleusputamenglobuspallidus
inputfrom cerebralcortexsubcorticnucleieach
other
influencemusclemovements directed byPMC
startingstoppingmonitoringmovementintensity
cognitionemotions filtering
Huntington'sDisease
mutant huntingtin protein accumulates degeneration of Bnrcortex
unable to control thoughtsfeelingsmovements ascaudatedeteriorates frontallobeconnection lost
arkin
son'sDisease
degeneration ofdopaminereleasingneurons in substantianigra
subnigra tremorsrigidmuscles
overactive
i ncephalon
e
halamushypothalamus epi
thalamus encloses 3rdventricle
Thalamus
2masses ofgraymatterheldtogetherbyinterthalamicadhesion
manydifferent
nucleiafferentsensoryimpulsesconverge on thalamus gateway to cerebralcortex
hypothalamus
autonomiccontrol bpheartrate Gl respiration
behaviour heart of limbicsystem
emotionalresponses
regulation of bodytempfoodintakewaterbalancethirstsleepcycle
hungersatietyADHreleasethirstsuprachiasmaticnucleus
endocrinesystemreleasehormonesproduceADHoxytocin 2nuclei
Epi
thalamus
pinealglandsecretesmelatonin
choroidplexusformsCSF
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