MATH 110 Midterm: Exam 1 No Solutions Spring 1996
14 Mar 2019
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A mouse so constructed repeatedly bites his tongue (without puncturing it). Intense pressure opens these enacs in umami taste receptor cells that is a rewarding stimulus. And since you have eliminated enacs from mechano-nociceptors there is no punishing signal from the intense mechanical stimulus: as soon as the mouse in (a) punctures his tongue, however, the behavior stops because he has sustained an injury. Prostaglandins, bradykinin and atp (many of you talked about substance p, cgrp and 5- It is the major mechanism by which receptors extend the range over which they can respond: tell us which ion has to enter an osn to trigger adaptation. 1: the same ion the one you named in (a) is vital for olfactory transduction even though its movement across the membrane carries very little current. Describe the mechanism by which movement of this ion into the cell triggers a large depolarization.
