1%Y l. . " CO 1::YVA docs.google.com/forms/d/ec. Size of Fibers Stimulatedd. Frequency of Stimulatione. Degree of Muscle StretchNorepinephrine affect on smooth muscle* :and causesa. membrane potential becomes larger Ob. increase tonec. Decrease toned. increase intracellular calcium ione. the spikes become more frequentf. a and cRBC are exposed to a series of saline (NaCI).solutions with decreasing dilutionTrueFalseIn sustained contraction muscle runs out of

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Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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All of the following occur during a stress response EXCEPT a. the parasympathetic branch of the autonomic nervous system is activated. b. the adrenal gland releases steroid hormones. c. an increased output of the heart increases blood flow to the muscles. d. glucose is made available for energy, due to the effects of epinephrine. Which of the following is NOT true of axons? a. They can vary greatly in length b. Under normal circumstances, they carry information toward the soma c. Some of them are covered with myelin sheaths d. They release chemicals that cross the synapse
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What effect would a WEAKER stimulus have on C? a. Greater amplitude (height) b. Lower amplitude c. Narrower curve d. No change e. Wider curve
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1. In the sympathetic division of the ANS, preganglionic neurons are located in spinal segments------------------. A. T12-L2 B. L2-S4 C. S2-S4 D. T1-L2 2. Most vital organs are innervated by both the sympathetic and parasympathetic divisions of the ANS. This is known as _. A. the baroreceptor reflex B. dual innervation C. rest and digest D. fight or flight
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Norepinephrine affect on smooth muscle :and causes a. membrane potential becomes larger b. increase tone O c. Decrease tone O d. increase intracellular calcium ion O