Prelim_1version_B_key - Name _KEY_ ID number _ Prelim 1...

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Name ___________ KEY __________________ ID number ____________________________ Prelim 1 – Version B HD 220: The Human Brain and Mind I expect you to adhere to the University’s Code of Academic Integrity. This includes students’ not misrepresenting their own work and during in-class examinations not using, giving, or receiving any assistance or information not given in the examination or by the proctor. No student may take an examination for another student. Please put your name and Cornell ID on the front page and your name on each page. This is to ensure that we give you credit for the entire exam in case pages become unstapled. Each question is worth 2 points unless indicated otherwise. Please do not open exam until proctor indicates time has begun. For Grader Use Only Page Points Available Points received Scantron 84 11 5 (+1 EC) 12 3 13 4 14 6 (+ 1 EC) 15 8 16 7 (+2 EC) 17 8 Total 125 (+ 4 EC)
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Name _________ KEY ____________________ VERSION B 2 4.2 1. Many drugs that reduce anxiety or have sedative effects act to increase the activity of the GABA A receptor. What is the ionic change associated with activation of this receptor? a. An influx of chloride ions b. An influx of sodium ion c. An influx of potassium ions d. An influx of calcium ions e. All of the above, depending on the location in the brain 2 a C 2 4.1 2. Which of the following is true about chemical transmission? a. Voltage gated calcium channels are opened when the action potential arrives at the axon terminal b. All neurotransmitters are synthesized in the nucleus and transported to the axon terminal. c. Inactivation requires Ca++ in order to occur. d. Voltage gated Na+ channels bind to neurotransmitter on the post-synaptic membrane 2 a C 2 4.2 3. Methamphetamine affects the synapse of which type of neurons? a. Acetylcholine b. GABA c. Dopamine d. Glutamate e. All of the above 2 c C 7 4.2 4. Which of the following is NOT true about habituation and sensitization? a. In habituation, response weakens with repeated presentation of stimulus due to decreased Ca + influx. b. In sensitization, response strengthens with repeated exposure due to reduced K+ efflux. c. Habituation refers to the process of a motion becoming so automatic one doesn’t need to think about it consciously and requires basal ganglia d. In sensitization, Ca + influx increases 2 c C 8 4.2 5. Which of the following is associated with norepinephrine? a. Involved in long-term potentiation (LTP) b. Thought to be increased during episodes of mania c. Blocked in myasthenia gravis d. One of the neuropeptide class of neurotransmitters 2 b C 1 2
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Name _________ KEY ____________________ VERSION B 3 2.2 6. The nerve cell’s phospholipids bilayer is crucial for a. cell metabolism b. gene transcription c. protein synthesis d. maintenance of the cell’s ionic charge 2 d C 1 7 3.2 7. Saltatory Conduction is: a. Refers to the movement of salts across the dendritic membrane b. Speed loss which occurs while a nerve impulse travels along a myelinated axon.
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This note was uploaded on 09/28/2008 for the course HD 220 taught by Professor Anon during the Fall '06 term at Cornell University (Engineering School).

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Prelim_1version_B_key - Name _KEY_ ID number _ Prelim 1...

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