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Concerning the cross-bridge (CB) power stroke, it is true that: O a. All of these O b. In concentric contractions, the CB power stroke pulls the actin filament toward the center of the sarcomere, causing sarcomere shortening O c. In isometric contractions, the CB power stroke pulls the actin filament straight down, preventing shortening or lengthening O d. In eccentric contractions, the CB power stroke pushes the actin filament away from the center of the sarcomere, causing sarcomere lengthening

Concerning the cross-bridge (CB) power stroke, it is true that: O a. All of these O b. In concentric contractions, the CB power stroke pulls the actin filament toward the center of the sarcomere, causing sarcomere shortening O c. In isometric contractions, the CB power stroke pulls the actin filament straight down, preventing shortening or lengthening O d. In eccentric contractions, the CB power stroke pushes the actin filament away from the center of the sarcomere, causing sarcomere lengthening

Biology: The Dynamic Science (MindTap Course List)
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter43: Muscles, Bones, And Body Movements
Section: Chapter Questions
Problem 3TYK
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Concerning the cross-bridge (CB) power stroke, it is true that: O a. All of these O b. In concentric contractions, the CB power stroke pulls the actin filament toward the center of the sarcomere, causing sarcomere shortening O C. In isometric contractions, the CB power stroke pulls the actin filament straight down, preventing shortening or lengthening O d. In eccentric contractions, the CB power stroke pushes the actin filament away from the center of the sarcomere, causing sarcomere lengthening TOSHIBA
Transcribed Image Text:Concerning the cross-bridge (CB) power stroke, it is true that: O a. All of these O b. In concentric contractions, the CB power stroke pulls the actin filament toward the center of the sarcomere, causing sarcomere shortening O C. In isometric contractions, the CB power stroke pulls the actin filament straight down, preventing shortening or lengthening O d. In eccentric contractions, the CB power stroke pushes the actin filament away from the center of the sarcomere, causing sarcomere lengthening TOSHIBA
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