Mechanosensory Pathways
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| show | DC-ML: all tactile and proprioceptive info from body except anterior two thirds of face<br>Trigeminal: tactile and proprioception from anterior two thirds of face
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| show | - Merkel cell: slow adapt mechanoreceptors<br>
- Meissner: rapid adapt MR<br>
- Pacinian: rapid<br>
- Ruffini: rapid<br>
- Crude touch-free nerve endings<br>
-Muscle spindle:rapid and slow adapting<br>
-Golgi tendon organs: slow<br>
-Joint Rcpt:slo
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| List the types of sensory information mediated by DC-ML and trigeminal pathways. | show 🗑
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| Explain why crude touch does not localize to a specific sensory pathway | show 🗑
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| Name the thalamic nuclei to which the DC-ML system projects. Name the thalamic nuclei to which the trigeminal mechanosensory system projects. | show 🗑
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| List the locations of the first, second and third order neurons in the DC-ML system and in the trigeminal mechanosensory system. Identify sites of decussation in both pathways. | show 🗑
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Created by:
pndinh@wm.edu
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