29. A student had injections of Botox in an attempt to eliminate facial wrinkles

Question

29. A student had injections of Botox in an attempt to eliminate facial wrinkles. Botox contains minute amounts of botulin, a chemical produced by bacteria, and works by blocking the release ofa specific neurotransmitter from motor neurons, causing muscle paralysis. This neurotransmitter is called a. dopamine b. c. acetylcholine d. GABA serotonirn 30. James Olds and Peter Milner located reward or pleasure centers in which of the following brain structures? a. hypothalamus b. cerebellum c. medulla d. amygdala 31. To demonstrate that brain stimulation can make a rat behave aggressively, a neuroscientist should electrically stimulate the rat's a. reticular formation b. cerebellum c. medulla d. amygdala 32. As a result of a stroke, a patient sustained damage to the motor cortex and now has paralysis of the right hand. Was the damage to the motor context located in the left or right hemisphere of the cerebral cortex? a. left hemisphere b. right hemisphere 33. When President John F. Kennedy was hit by a sniper's bullet in the back of his head, he died almost instantly because the bullet destroyed the part of his brain called thewhich controls breathing, heartbeat, and other vital body functions. a. pons b. medulla c. amygdala d. cerebral cortex which brain structure processes information from all the senses except smell? a. medulla -34, b. amygdala c. pons d. thalamus 35. The cerebral cortex is located in the a. hindbrain b. midbrain c. forebrain 36. The association areas of the brain are located in the a. hindbrain b. thalamus c. limbic system d. cerebral cortex

Explanation / Answer

29.d. Botox affects GABA

30. a. Olds and Milner studied the hypothalamus as the reward centre

31.d amygdala shows response to aggression

32. a. The damage was in the lef5 hemisphere

33. b. The medulla controls these vital functions of breathing, heart rate, etc.

34. d. The thalamus is not involved in the processing of sensations of smell.

35.c. The cerebral cortex is located in the forebrain

36. d. Association areas are part of the cerebral cortex

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