Characterize each receptor activity described below by choosing the appropriate letter and number(s) from keys A and B. ___ , _ (1) You are enjoying an ice cream cone. _ , _ (2) You have just scalded yourself with hot coffee. _ , _ (3) The retinas of your eyes are stimulated. _ , _ (4) You bump (lightly) into someone. _ , _ (5) You are in a completely dark room and reaching toward the light switch. _ , ___ (6) You feel uncomfortable after a large meal. Key A: a. exteroceptor b. interoceptor c. proprioceptor Key B: (1) chemoreceptor (2) mechanoreceptor (3) nociceptor (4) photoreceptor (5) thermoreceptor

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