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Final Exam - Anatomy and Physiology, Fall 2008 |, Exams of Physiology

Material Type: Exam; Class: Anatomy & Physiology; Subject: Biology / Biological Sciences; University: Minot State University;

Typology: Exams

2011/2012

Uploaded on 04/01/2012

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BIOL 220 Human Anatomy & Physiology T Final Exam December 16, 2008 I will post your grade using your student ID number as an identifier. Tf you do not want me to use your student ID number to post your grade you have to provide me with a six-digit alternative number on your scantron. Failure to provide an alternative number implies your consent to post grades using your student [D. MULTIPLE CHOICE. Choose the one alternative that bést completes the statement or answers the question. 1) Finely controlled muscles, such as the extraocular muscles, have: A) large motor units and very short twitch responses. B) large motor units and long twitch responses. C) small motor units and long twitch responses. D) small motor units and very short twitch responses. 2) Whole muscle is able to respond in a graded fashion to stimulation, With increasing strength of stimulation, more and more motor units will be activated in a muscle. This is called: A) twitch activation. B) wave summation. C) tetanus. D) recruitment. 3) In an isometric contraction, the muscle: A) always has to shorten. B) is usually able to move the load. C) does not change in length but develops tension. D) changes in length and moves the "load." 4) What primarily determines the force generated by a muscle? A) the tendon B) the length of the muscle C) the number of sarcomeres in series D) the total number of muscle cells available for contraction 5) Theoretically, if a muscle were stretched to the point where thick and thin filaments no longer overlapped: A) ATP consumption would increase since the sarcomere is "trying" to contract. B) no muscle tension could be generated. C)} cross bridge attachment would be optimum because of all the free binding sites on actin. D) maximum force production would result since the muscle has a maximum range of travel. 6) An aerobic metabolic pathway that results in the production of 30-36 net ATPs per glucose molecule is: A) creatine phosphate. B) glycolysis. C) hydrolysis. D) respiration.