B100m2w06 - BIPN 100, Mammalian Physiology I Name: _...

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BIPN 100, Mammalian Physiology I Name: _________________________________ Winter, 2006 2nd. Midterm Exam I.D. #: _________________________ March 3, 2006 Page 1 1. (12 points). Circle the correct answer or Fill in the blanks: A. Muscle spindles are _tonic / phasic _ receptors that are activated by:______________________. B. The patellar (knee-jerk) reflex is a flexor / extensor reflex on the ipsilateral / contralateral side. C. In a relaxed muscle the spindle sensory neurons are firing / at rest . For the following, indicate whether the rate of firing of muscle spindle sensory neurons increases, decreases, or remains the same: D. During an isotonic contraction in a normal muscle: ___________________ E. During an isotonic contraction in a normal muscle when a load is added: ___________________ F. During an isotonic contraction in a muscle if the axons of the gamma motoneurons are cut:__________________ . 2. (18 points).You are enjoying a nice day at the world famous San Diego Zoo and suddenly an angry gorilla gets loose and heads straight to you. List the appropriate change in your organs, the corresponding types of receptor involved, and whether it is excitatory or inhibitory by this strong sympathetic stimulation. Effector Organ Sympathetic Response Receptor Excitatory or Inhibitory A. Pupil of eye B. Heart C. Lung D. Intestine E. Adipose tissue F. Sweat glands 3. (18 points). A pharmaceutical company developed several drugs that interact with the transduction
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This note was uploaded on 12/30/2010 for the course BIOLOGY BIPN 100 taught by Professor Forts during the Spring '10 term at CSU Northridge.

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B100m2w06 - BIPN 100, Mammalian Physiology I Name: _...

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