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Exam 3 Fall 08 - Name Lab Section BIOL 301 EXAM 3 Blue 20...

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Name ___________________________ Lab Section ____ BIOL 301 EXAM 3 Blue 20 November 2008       Directions: Choose the one best answer for each question. If a question seems ambiguous or seems to have more than one correct answer or no correct answer, you may explain your reason for choosing the answer you did (and eliminating the other answers) with a brief comment written in the table below. You will get credit for the question if your reasoning is correct. To submit comments for consideration, fill in your name and lab section on this page and hand it in together with your scantron. Question Number Answer Chosen R e a s o n i n g
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BIOL 301 Fall 2008 Exam 3 Blue Page 2 of 7 ++ SENTENCE COMPLETION ++ In this group of questions, select the answer choice that best completes the statement or best answers the question. 1. The _____ are parts of the brain stem. 1. cerebellum 2. diencephalon 3. pons 4. cerebral peduncles 5. pineal gland 6. midbrain A. 1, 2, 3, 4, 5, 6 B. 2, 3, 5, 6 C. 3, 4, 6 D. 1, 3, 5 E. 2, 4 6 2. From this record of a stimulated nerve, calculate the conduction velocity in meters per second. The distance between stimulating and recording electrodes was 50 mm. (The “pointed” wave was created when the nerve was stimulated.) A. 8.3 m/sec B. 5.0 m/sec C. 1.5 m/sec D. 3.3 m/sec E. 0.3 m/sec 3. Cerebrospinal fluid flows from the fourth ventricle through the ____ into the subarachnoid space around the brain and spinal cord. 4. The region of the sheep’s brain indicated by the arrow ____. 5. Which cranial nerve allows you to taste your food, swallow it, and then say, “Thank you,” to the cook who prepared the food? 6. In the computer simulation of the nerve, as the nerve fiber diameter _____, the nerve stimulus threshold _____. A. increased, decreased B. increased, increased C. decreased, decreased D. decreased, remained the same E. increased, remained the same
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BIOL 301 Fall 2008 Exam 3 Blue Page 3 of 7 7. Stimulation of which of the following receptors will result in a perception of a highly localized, light touch?
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