PS263 Chapter Notes -Transcranial Magnetic Stimulation, Ventricular System, Dura Mater

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19 Mar 2013
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Central nervous system: skull and spine. Peripheral nervous system: outside skull and spine. Composed of afferent nerves that carry sensory information from the skin, skeletal muscles joints, eyes, ears. Efferent nerves that carry motor signals from the central nervous system to the skeletal muscles. Composed of afferent nerves that carry sensory information from internal organs to the cns. Efferent nerves that carry motor signals from the cns to internal organs: afferent(advance, approach, arrive) goes toward cns, efferent nerves. Sympathetic: autonomic motor nerves that project from the cns in the lumbar(small of the back) and thoracic(chest area) regions of spinal cord. Meninges, ventricles, and cerebrospinal fluid: the 3 meninges protect the brain and spinal cord. Outer meninx: a tough membrane called the dura mater: inside the dura mater is the arachnoid membrane(weblike) Beneath the arachnid membrane is the subarachnoid space(contains large blood vessels and csfluid) Innermost meninx, pia mater (adheres to the surface of the cns)

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