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147 An investigator is examining the effects of various manipulations on the electrical activity in intestinal smooth muscle. The resting changes in membrane potential are shown between points W and X in the figure shown The observed changes in membrane potential are most likely due to which of the following manipulations occurring at points X and Y, respectively? Point X Point Y Acetylcholine administration Epinephrine administration Norepinephrine administration Stretching the smooth muscle Sympathetic stimulation. stretching the smooth muscle acetylcholine administration stretching the smooth muscle sympathetic stimulation vagal afferent stimulation оооо B) C) E) Membrane potential (mv) -20- -30- -40- -50- -60- -70- him www Į 10 15 20 Time (sec) 0 25 30

147 An investigator is examining the effects of various manipulations on the electrical activity in intestinal smooth muscle. The resting changes in membrane potential are shown between points W and X in the figure shown The observed changes in membrane potential are most likely due to which of the following manipulations occurring at points X and Y, respectively? Point X Point Y Acetylcholine administration Epinephrine administration Norepinephrine administration Stretching the smooth muscle Sympathetic stimulation. stretching the smooth muscle acetylcholine administration stretching the smooth muscle sympathetic stimulation vagal afferent stimulation оооо B) C) E) Membrane potential (mv) -20- -30- -40- -50- -60- -70- him www Į 10 15 20 Time (sec) 0 25 30

Human Anatomy & Physiology (11th Edition)
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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147 An investigator is examining the effects of various manipulations on the electrical activity in intestinal smooth muscle. The resting changes in membrane potential are shown between points W and X in the figure shown The observed changes in membrane potential are most likely due to which of the following manipulations occurring at points X and Y, respectively? Point X Point Y B) Acetylcholine administration Epinephrine administration Norepinephrine administration Stretching the smooth muscle C) stretching the smooth muscle acetylcholine administration stretching the smooth muscle sympathetic stimulation vagal afferent stimulation E) Sympathetic stimulation. OOOO Membrane potential (mv) -20- -30- -40- -50- -60- -70- 0 in vrr t 10 15 20 Time (sec) 25 30
Transcribed Image Text:147 An investigator is examining the effects of various manipulations on the electrical activity in intestinal smooth muscle. The resting changes in membrane potential are shown between points W and X in the figure shown The observed changes in membrane potential are most likely due to which of the following manipulations occurring at points X and Y, respectively? Point X Point Y B) Acetylcholine administration Epinephrine administration Norepinephrine administration Stretching the smooth muscle C) stretching the smooth muscle acetylcholine administration stretching the smooth muscle sympathetic stimulation vagal afferent stimulation E) Sympathetic stimulation. OOOO Membrane potential (mv) -20- -30- -40- -50- -60- -70- 0 in vrr t 10 15 20 Time (sec) 25 30
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