Striated muscle twitch force reaches a maximum after nearly all of the calcium is pumped out of the sarcomere and back into the sarcoplasmic reticulum because: A.) sarcomere activation is not dependent on calcium B.) calcium inhibits force production C.) calcium interferes with ATP hydrolysis D.) Calcium is the initial switch to turn the actin thin filament on and then crossbridge kinetics define how long the thin filament will remain active E.) A & B
Striated muscle twitch force reaches a maximum after nearly all of the calcium is pumped out of the sarcomere and back into the sarcoplasmic reticulum because: A.) sarcomere activation is not dependent on calcium B.) calcium inhibits force production C.) calcium interferes with ATP hydrolysis D.) Calcium is the initial switch to turn the actin thin filament on and then crossbridge kinetics define how long the thin filament will remain active E.) A & B
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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Striated muscle twitch force reaches a maximum after nearly all of the calcium is pumped out of the sarcomere and back into the sarcoplasmic reticulum because:
A.) sarcomere activation is not dependent on calcium
B.) calcium inhibits force production
C.) calcium interferes with ATP hydrolysis
D.) Calcium is the initial switch to turn the actin thin filament on and then crossbridge kinetics define how long the thin filament will remain active
E.) A & B
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