3.3+body+senses+and+movement

3.3+body+senses+and+movement - Body Senses Movement Youre...

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1 “You’re sure you can’t feel it?” From the Previous Class … : s What are the functions of the following? s Sclera s Iris s Pupil s Cornea s Lens s Ciliary body s s Achromat s Monochromat s Rods s Cones s Bipolar cells s Ganglion cells s Horizontal cells s Amacrine cells s Dichromat s Ataxia s Simple cells s Complex cells s Magno cells s Parvo cells s Dorsal stream s Ventral stream s Neglect s Agnosias Today’s Questions : s Body senses: s How does the vestibular system work? s How do we perceive touch? s s Movement: s How do muscles work? s What areas of the brain control movement? s What are the symptoms, causes, & treatments of the common movement disorders?
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2 Body Senses The body senses : proprioception pain temperature touch kinesthesis vestibular sense Body Senses Vestibular system : s Ear structures: s Semicircular canals s Ampulla s Utricle s Saccule s Brain projections: s Cerebellum s Brain stem s Parieto-insular-vestibular cortex Angular acceleration from head tilts Linear acceleration from body movement saccule utricle ampulla Body movements Eye movements Body Senses nerve fiber nerve fiber hair cells hair cell hair bundles cupula stereocilia saccule macula utricle ampulla crista otoliths
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3 Body Senses Epidermis Dermis Pacinian corpuscle Ruffini cylinder Merkel disc Free nerve endings Meissner corpuscle temp. Body Senses Merkel receptor Meissner corpuscle Ruffini cylinder Pacinian corpuscle Receptive field small small large large Ideal stimulus light light significant significant pressure tapping stretching
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This note was uploaded on 09/30/2011 for the course PSY 4322 taught by Professor Natalieceballos during the Fall '11 term at Texas State.

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3.3+body+senses+and+movement - Body Senses Movement Youre...

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