9Somatosensory

9Somatosensory - Exam Review 1 pm 3 pm today Norris...

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Exam Review 1 pm – 3 pm today Norris Conference Room 3 rd floor next to Biology Office
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Sensory Systems: General Principles Afferent portion of somatic system Comprises specialized nerve cells that respond to stimuli w/in or outside the body = sensory receptors Different receptors for different types of stimuli (temp, light, pressure, etc.) Convert stimulus energy to electrical signal Perception means that a sensory signal reached CNS
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Somatic Sensory System Touch and Proprioception
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Somatic Sensory Overview Perception How are somatic sensations conveyed to the CNS and brain (pathways)? Next 9 or so slides Sensory Discrimination How is the type and strength of a stimulus encoded? Receptors How they work Different types
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Pathway Depends on Modality Discriminative touch - touch, pressure, vibration (crosses high in medulla) Pain and Temp - to be considered later (crosses in spinal cord)
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1st order neurons 2nd order neurons 3rd order neurons
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midpons midpons
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Post-central gyrus
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This note was uploaded on 11/09/2011 for the course CHEM 2341 taught by Professor Staff during the Fall '11 term at Texas State.

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9Somatosensory - Exam Review 1 pm 3 pm today Norris...

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