2007Midterm3Key

2007Midterm3Key - Neurobiology Midterm III Spring 2007 ZO...

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Neurobiology CODE NUMBER __________________________ Midterm III, Spring 2007 ZO 488 / ZO 588 Neurobiology Midterm Exam III ZO 488 / ZO 588 **************************************************************************** I certify that I will neither give nor receive unauthorized aid on this examination. SIGN YOUR NAME ____________________________________ PRINT YOUR NAME ___________________________________ **************************************************************************** 1. This exam contains 11 numbered pages. Make sure you have all 11 pages of the exam and write your code number on each page. You will receive one bonus point for writing your code number on each page . 2. There are a total of 150 points on this exam. 3. Read each question carefully, limit your answers to the space provided, and please write neatly. 4. For multiple choice questions, choose all correct answers unless you are instructed to select only one.
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CODE NUMBER __________________________ page 1 TRUE / FALSE (22 points total) 1. FALSE Thalamocortical neurons have cell bodies in the cortex and project axons to the thalamus. **Thalamocortical neurons have cell bodies in the thalamus and project axons to the cortex.** 2. TRUE The thalamus and hypothalamus are part of the diencephalon. 3. TRUE Drive states are simple forms of motivational states. 4. FALSE Narcolepsy is a sleep disorder characterized by a lack of REM sleep. **In narcolepsy, individuals suddenly fall directly into REM sleep or a state that closely resembles REM sleep.** 5. FALSE After dopamine (DA) is released into the synapse, it is enzymatically degraded in the synaptic cleft. **DA action is stopped by reuptake into the presynaptic terminal by DA transporters; in the terminal DA can be enzymatically degraded by MAO.** 6. TRUE Dopamine (DA) can have excitatory or inhibitory effects, depending on the type of dopamine receptor expressed by the postsynaptic neuron. 7. TRUE Sleep (or a similar period of rest) is highly conserved across a wide range of species. 8. TRUE American Sign Language (ASL) appears to involve activity in the same brain regions that are involved in spoken language. 9. FALSE Damage in the temporal lobe can result in a language disorder known as Wada’s aphasia. **There is no such thing as “Wada’s aphasia” – temporal lobe damage can result in Wernicke’s aphasia. .** 10. TRUE Aromatase is an enzyme that converts testosterone to estrogen. **I didn’t mean to trip you up on this, but you should know that estradiol is an estrogen.** 11. FALSE All gonadal steroid hormone effects are mediated by changes in gene transcription. **Some are, some are not.** 12. FALSE The sex difference in acoustic emissions seen in humans is probably a result of activational effects of gonadal steroid hormones. **Since the sex difference in acoustic emissions is established by birth (acoustic emission frequency does not change after birth), any gonadal steroid hormone action on acoustic emissions would fall into the category of organizational.** 13. FALSE Caffeine is an adenosine receptor agonist.
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This note was uploaded on 07/01/2008 for the course NBIO 721a taught by Professor Sancar during the Spring '08 term at UNC.

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2007Midterm3Key - Neurobiology Midterm III Spring 2007 ZO...

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