NEUR0010 Exam 2 2017.pdf

NEUR0010 Exam 2 2017.pdf - Neuro 1 2017 Exam 2 November 7...

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1 Neuro 1 2017 November 7, 2017 Exam 2 Please blacken in (DO NOT CIRCLE) the one best answer to each question on the answer sheet. Use the draft answer sheet first and then transcribe your final answers onto the final answer sheet. Hand in the questions and the final answer sheet. Keep the draft answer sheet so you can check them against the answer key which will be posted later tonight. 1. At the Battle of Bunker Hill during the Revolutionary War, an American general issued the famous command, “Don’t fire until you see the whites of their eyes”. What eye structure was the ophthalmologically-informed general referring to? a) Cornea b) Iris c) Pupil d) Sclera 2. The dark current in photoreceptors is a) Inflow of K+ ions b) Outflow of K+ ions c) Inflow of Na+ ions d) Outflow of Na+ ions 3. Which type of retinal neuron is closest to the surface of the inner retina? 4. One day you are walking outside your dorm and someone throws a water balloon out a window. To keep the balloon in focus as it falls from the window to your face you must 5. In phototransduction, the transducin protein is 6. The pirate costume you have for Halloween includes a patch that you use to cover your left eye. Now looking through your right eye only, you see someone else dressed as a pirate jealously coming at you with a sword. All the following lesions the maniac pirate might make would leave you blind in the left half of the visual field of your open right eye (looking with the right eye) EXCEPT a) Right optic nerve b) Right LGN c) Right optic radiation d) Optic chiasm
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2 7. Which layer of the left LGN receives input from parvo ganglion cells in the right eye? a) Layer 1 b) Layer 2 c) Layer 3 d) Layer 4 8. One of the mechanisms of light adaptation involves changes in 9. High visual acuity in the fovea is associated with
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