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Exam6review.doc - A&P Lecture Exam # 6(Chapter 15-17)...

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Chapter 15 Sensory pathways and the Somatic nervous system 1. Define adaptation: Receptors and receptive fields. Tonic receptors 2. List four types of general sensory receptors, and Identify the nature of the stimulus that excites each type. Nociceptor (Pain); Thermoreceptor; Mechanoreceptor; Chemorecepor 3. Identify the three classes of mechanoreceptors. Tactile recptors; Barcoreceptor; Proprioceptors. (some typical examples) 4. First-order neuron-----second-order neuron----third-order neuron 5. Somatic sensory pathways: Page 507 Table 15-1 Spinothalamic pathway: carry sensations of poorly localized touch, pressure, pain and temperature. Posterior column pathway: Fasciculus gracilis (proprioception and fine touch, ventral pressure and vibration from inferior half of body) Fasciculus cuneatus( Proprioception and fine touch,ventral pressure and vibration from superior half of body) Spinocerebellar pathway: Proprioception---cerebellar on side of stimulus (some
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Exam6review.doc - A&P Lecture Exam # 6(Chapter 15-17)...

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