Biol 216 6 Brain & Nervous System 65-96.pdf

Biol 216 6 Brain & Nervous System 65-96.pdf - Voluntary...

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5/19/17 1 Voluntary movement Basal nuclei are considered part of the limbic system Layer of cerebrospinal fluid between meninges Ventricles Central canal of spinal cord Cerebral cortex (gray matter) White matter Corpus callosum Basal nuclei (gray matter) Thalamus Ventricles Right cerebral hemisphere Left cerebral hemisphere Ventricles Cavities in the brain filled with CSF
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5/19/17 2 Function of CSF Protect the brain from striking the cranium when the head is jolted. CSF provided buoyancy and support to the brain against gravity. The buoyancy protects the brain since the brain and CSF are similar in density; this makes the brain float in neutral buoyancy, suspended in the CSF. This allows the brainto attaina decent size and weight without resting on the floor of the cranium, which would kill nervous tissue. Also, chemical balance/ stability Subdural haematoma (A swelling containing blood) CT Scan Computerized Tomographic –shows structure Computer combines a series of Xray views to make image
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5/19/17 3 Ventricular volume is significantly higher in AD patients compared to age-matched healthy subjects. Hippocampus Part of the limbic system and plays important roles in the consolidation of informationfrom short term to long term memory and spatial navigation. In Alzheimer's disease, the hippocampus is one of the first regions of the brain to sufferdamage Earlysymptoms: memoryloss, disorientation Resemblance to the seahorse , from the Greek hippos meaning "horse" and kampos meaning "sea monster")
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5/19/17 4 2014Nobel Prize in Physiology and Medicine http://www.nobelprize.org/nobel_prizes/medicine/laureates/2014/press.html
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