Brain and Crainial Nerves (2) - FUNCTIONAL ANATOMY OF THE...

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FUNCTIONAL ANATOMYCorey S. Johnson, Ph.D.University of North CarolinaAll images Copyright Thieme 2007, Atlas of AnatomyOF THE BRAIN& CRANIALNERVES
The Brain and Cranial NervesIntroductionThe brain is theintegrative center of the body.Itreceives information about the internal and externalenvironment, and makes decisions regardingmuscular movements, glandular secretions, heart andrespiration rate, social interactions, and theregulation of homeostasis.The brain is organized much like the spinal cordwith central gray matter surrounding a fluid filledcavity.Surrounding the gray matter are large whitematter tracts for carrying ascending and descendinginformation.Unique to the brain, however, is asecond region of gray mater that is found insuperficial to the white matter.It is here in thecerebral cortexthat the many pieces of sensoryinputs converge to allow us to make sense of ourenvironment.It is the cerebral cortex that givesmammals and especially humans their intelligence.In this lab you will learn the…1.organization of the brain2.anatomy and function of the meninges and ventricles3.functional anatomy of the brain’s various regions4.function of each of the 12 pairs of cranial nervesOBJECTIVES: You should be able to…describe the major subdivisions and anatomical landmarks of the braindescribe the locations of the gray and white matterdescribe the meninges of the braindescribe the fluid-filled chambers within the braindiscuss the production, circulation, and function of the cerebrospinal fluid thatfills these chamberslist the components of the hindbrain and midbrain and their functionsdescribe the location and functions of the reticular formationname the three major components of the diencephalon and describe theirlocations and functionsidentify the five lobes of the cerebrum and their functionsdescribe the three types of tracts in the cerebral white matterdescribe the location and functions of the basal nuclei and limbic systemidentify the brain regions concerned with sensation, motor control, and languagelist the 12 cranial nerves by name and numberstate the functions of each cranial nerve
DiencephalonMidbrainPonsMedullaoblongataCerebellumMidsagittal section of the brain, medial viewCerebral hemisphereThe Organization of the Brain:Cerebrum, Diencephalon, Brainstem, and CerebellumThe brain’s six major divisions include:Cerebrum (2 hemispheres)DiencephalonMidbrainPonsMedulla oblongataCerebellum4 weeks following fertilization, the forerunner to thebrain and spinal cord is formed, the neural tube.Thishollow tube forms all of the tissue found in the CNS.The walls of this neural tube become the neurons andglial cells, while the hollow cavity becomes the centralcanal in the spinal cord and series of interconnectedcavities in the brain calledventricles.

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Term
Fall
Professor
TA
Tags
Physiology, Anatomy, Human Anatomy, Gray matter, Lateral ventricles

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