001_Bild2ExamKey1

001_Bild2ExamKey1 - BILD 2 Winter Quarter, 2006 1 Name...

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BILD 2 Name __ KEY _________________ Winter Quarter, 2006 1 BILD 2 FIRST MIDTERM EXAM Winter Quarter, 2006 WRITE YOUR NAME ON ALL 5 PAGES. ANSWER ALL 9 QUESTIONS (100 POINTS). CONFINE YOUR ANSWERS TO THE SPACE ALLOWED. (Answer only the exact questions asked, but provide all the detail possible in those cases.) __________ 1. ( 5 points) __________ 2. (10 points) __________ 3. (10 points) __________ 4. (10 points) __________ 5. (10 points) __________ 6. (10 points) __________ 7. (15 points) __________ 8. (15 points) __________ 9. (15 points) ________ 100 total TOTAL POINTS _________ [_____ bonus points?] By signing this waiver I give permission for this exam to be left for me to pick up in the boxes outside the elevators on the third floor of Pacific Hall (if I miss the exam return at the end of lecture). I realize that this procedure may expose my grade to public scrutiny. If I do not sign this waiver, I acknowledge that my exam will be available for pick up only between 1:00 and 3:00 PM Monday-Friday in 3140B Pacific Hall. KEY _____________________________________________________________ Signature Date
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BILD 2 Name __ KEY _________________ Winter Quarter, 2006 2 1. (5 points) How is an organ different from an organ system? (Definitions are sufficient here.) Organ: grouping of tissues producing a joint function (e.g. the heart). Organ system: groups of organs with shared responsibility (e.g. cardiovascular system). 2. (10 points) What is the function of each of the following (very briefly; one sentence each): Generator potential – local potential in a sensory neuron that drives action potentials in proportion to the intensity of the physical stimulus. Hippocampus – region of the brain (part of the limbic system) responsible for encoding new (declarative) memories. Myelin – wrapping of axons by glia that produces insulation and speeds up conduction of the action potential. Neuromuscular junction – synapse formed by the motor neuron axon terminal onto the skeletal muscle fiber. Nernst equation – E ion = V m = 58log([ion] out /[ion] in ) OR value of V m at which the ion shows no net flux across the membrane because the force driving it down its concentration gradient is equal and opposite to the electrical force imposed by the charge distribution. 3. (10 points) What is the ionic basis of the resting potential? List the principles involved and
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This note was uploaded on 05/20/2008 for the course BILD 1 taught by Professor Boulanger during the Spring '08 term at UCSD.

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001_Bild2ExamKey1 - BILD 2 Winter Quarter, 2006 1 Name...

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