PSYC 211 Lecture Notes - Lecture 11: Olfactory Receptor, Olfactory Bulb, Taste Receptor
27 Oct 2016
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Document Summary
Finishing up the topic on the sensory systems from lecture #10. How we break up the sensation of touch into the external system- sensing the external environment which is exteroceptive or enteroceptive touch(which is inside the body) or inside the body-kinaesthetic. Introduced a handful of sensory receptive cells found in the skin. Most of them are related to the exteroceptive system except for the. Ruffini corpuscles which largely mediate the kinaesthetic sense. Depicted in white, axons that just end and they largely mediate the sensation of pain and temperature. In comparison to all the others which are conveying localized info. about touch. They are mediated by distinct sensory receptors in the skin and the information actually ascends in two diff. columns in the spinal cord. Pain and temperature go up the spinal cord on the other side, the contralateral side of the body because they cross as soon as they enter the spinal cord.
