What events occur during the relaxation of the musclefiber? What is the role of ATP?
What events occur during the relaxation of the musclefiber? What is the role of ATP?
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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What events occur during the relaxation of the muscle
fiber? What is the role of ATP?
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Step 1 MUSCLE FIBER
RELAXATION OF MUSCLE FIBER : Ca++ ions are pumped back into the SR , which causes the tropomyosin to reshield the binding sites on the actin strands . A muscle may also stop conducting when it runs out of ATP and becomes fatigued . The release of calcium ions initiates muscle contraction .
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