Question 8 0 out of 0 pointsCorey goes into the doctor because his right ear hurts. After an exam, the doctor tells Corey that his eardrum is ruptured. What part of Corey's ear ruptured?
Answer Feedback:FQ:21Page:253–254Section:How the Ear WorksType:Conceptual/AnalyticalFQ:21Page:253–254Section:How the Ear WorksType:Conceptual/AnalyticalQuestion 9 0 out of 0 pointsResearch on pain sensitivity following injury suggests that generally: Answer Feedback:FQ:17Page:249–250Section:Mechanisms of Pain EnhancementType:Factual/DefinitionalQuestion 10 0 out of 0 pointsWhich of the following is TRUE of the periaqueductal gray (PAG)? Feedback:Page:250
Section:Neural and Chemical Mechanisms of Pain ReductionType:Factual/DefinitionalResponse Feedback: The only statement here that is true of the PAG is that electrical stimulation of the PAG can reduce or stop chronic pain. This electrical stimulation is so powerful that abdominal surgery can be performed without drugs in animals that are receiving such stimulation. The PAG is located in the midbrain. If morphine and other opiate drugs exert their well-known analgesic effects partly through direct action in the PAG it can reduce pain. Alcohol, on the other hand, will not reduce pain. The correctanswer is “electrical stimulation of the PAG can reduce or stop chronic pain.” FQ:18Page:250Section:Neural and Chemical Mechanisms of Pain ReductionType:Factual/Definitional