Which unfamiliar words are sounded out like brocas

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which unfamiliar words are sounded out. Like Broca’s area,Wernicke’s area is located in one cerebral hemisphere only,typically the left.Although there are many similar functional areas in bothcerebral hemispheres, each hemisphere is also a “special-ist” in certain ways. For example, the left hemisphere is the“language brain” in most of us, because it houses centersassociated with language skills and speech. The right hemi-sphere is more concerned with abstract, conceptual, or spatialprocesses—skills associated with artistic or creative pursuits.The cell bodies of cerebral neurons involved in thesefunctions are found only in the outermost gray matter ofthe cerebrum, thecerebral cortex.Most of the balance ofcerebral tissue—the deepercerebral white matter—is com-posed of fiber tracts carrying impulses to or from the cortex.Using a model of the human brain (and a preserved hu-man brain, if available), identify the areas and structures ofthe cerebral hemispheres described above.Then continue using the model and preserved brain alongwith the figures as you read about other structures.DiencephalonThediencephalonis embryologically part of the forebrain,along with the cerebral hemispheres.Turn the brain model so the ventral surface of the braincan be viewed. Starting superiorly (and usingFigure 17.3asa guide), identify the externally visible structures that markthe position of the floor of the diencephalon. These are theolfactory bulbs(synapse point of cranial nerve I) andtracts,optic nerves(cranial nerve II), optic chiasma(where thefibers of the optic nerves partially cross over),optic tracts,pituitary gland,andmammillary bodies.Brain StemContinue inferiorly to identify thebrain stemstructures—thecerebral peduncles(fiber tracts in themidbrainconnectingthe pons below with cerebrum above), the pons, and the me-dulla oblongata.Ponsmeans “bridge,” and theponsconsistsprimarily of motor and sensory fiber tracts connecting thebrain with lower CNS centers. The lowest brain stem region,themedulla oblongata,is also composed primarily of fibertracts. You can see thedecussation of pyramids,a crossoverpoint for the major motor tracts (pyramidal tracts) descend-ing from the motor areas of the cerebrum to the cord, on themedulla’s surface. The medulla also houses many vital auto-nomic centers involved in the control of heart rate, respiratoryrhythm, and blood pressure as well as involuntary centersinvolved in vomiting, swallowing, and so on.Primary motor cortexPremotor cortexFrontaleye fieldWorking memoryfor spatial tasksExecutive area fortask managementWorking memory forobject-recall tasksBroca's area(outlined by dashes)Solving complex,multitask problems(d)Motor areasPrefrontal cortexSensory areas and relatedassociation areasCentral sulcusPrimary somatosensorycortexSomatosensoryassociation cortexSomaticsensationGustatory cortex(in insula)TasteWernicke's area(outlined by dashes)Primary visualcortexVisualassociationareaVisionAuditoryassociation areaPrimaryauditory cortex

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Term
Fall
Professor
PETERS
Tags
Biology, Lateral ventricles, third ventricle
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
Human Biology
The document you are viewing contains questions related to this textbook.
Chapter 4 / Exercise 10
Human Biology
Starr/McMillan
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