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Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Question
Depolarization of the sarcolemma means ________.
a. the inside of the membrane has become less negative as sodium ions accumulate
b. the outside of the membrane has become less negative as sodium ions accumulate
c. the inside of the membrane has become more negative as sodium ions accumulate
d. the sarcolemma has completely lost any electrical charge
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- The sacroplasmic reticulum must release _______ before myosin heads can attach to actin so that a muscle fiber can contract. A ATP B calcium C sodium D acetylcholinearrow_forwardWhat would you expect to happen to a resting skeletal muscle if the sarcolemma suddenly became very permeable to calcium ions?arrow_forwardDuring sarcomere contraction, _________ first has to bind to ________ Select one: a. Calcium, troponin b. Calcium, microfilaments c. Sodium, troponin d. Sodium tropomysin e. Potassium, microfilamentsarrow_forward
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