Physiology 2130 Lecture Notes - Lecture 7: Ear Canal, Sensory Neuron, Vestibular System
24 Mar 2019
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7. 3 transduction of environmental information: transduction of environmental info is how info from external environment is turned into language the brain understands action potentials. At this location, the pencil tip provides an adequate stimulus for the activation of the cold receptor, giving a cool feeling in the location where you touched. 40 cycles/sec) and touch: ruffini"s corpuscles that detect touch, pacinian corpuscles that detect high frequency vibrations (250 to 300 cycles/sec, receptors are specialized cells, not neurons. 7. 11 somatosensory pathways from the periphery to the brain: the spinothalamic (anterolateral) tract: the spinothalamic tract transmits info dealing with very basic sensations like pain, temperature, and crude touch (more forceful than fine touch) 7. 12 somatosensory pathways from the periphery to the brain: dorsal column, medial. Lemniscal system: dorsal column, medial lemniscal system transmits info associated with more advanced sensations of fine detailed touch, proprioception and vibration.
