Review Questions Chapter 12 Answer Key

Review Questions Chapter 12 Answer Key - Review Questions...

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Sheet1 Page 1 Review Questions Chapter 12 Answer Key 1. Imagine rubbing your finger across a pane of smooth glass and then across a brick. What kinds of skin receptors help you distinguish the two surfaces? As far as your somatic sensory system is concerned, what is different about the two surfaces? Smooth glass might produce a stimulus with no vibrations and no changes in stimulus that glass creates would have to excite slowly adapting mechanoreceptors small receptive fields. A brick might produce a stimulus with vibrations and changes in pressure related to the raised parts of its surface. This is a good stimulus valleys on the surface of the brick, a rapidly adapting receptor might best detect the stimulus. This requirement might make a Pacinian corpuscle the ideal receptor for endings are slowly adapting. 2. What purpose is served by the encapsulations around some sensory nerve endings in the skin? Encapsulations around Pacinian corpuscles provide a mechanism that makes the Pacinian corpuscles rapidly adapting, which is a property that makes them sensitive to vibrating high-frequency stimuli. If the encapsulations are stripped away, as done
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Review Questions Chapter 12 Answer Key - Review Questions...

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