Concept explainers
To determine: Whether the statement “An increase in sarcomere length reduces the tension produced in a muscle fiber by reducing the size of the zone of overlap and the number of potential cross-bridge interactions.” is true or false.
Introduction: Muscles are the connective tissues that are widely spread throughout the body and help to provide movement and flexibility to the body. The muscles are divided into cardiac, skeletal, and visceral muscles.
Answer to Problem 1CRQ
Correct answer: True.
Explanation of Solution
Sarcomeres produce tension efficiently inside the optimal range of lengths. When the resting sarcomere length is in the range, the maximum number of cross-bridges can be formed. This produces great tension. An increase in the length of the sarcomere reduces the tension that is caused by the decrease in the size of the zone of overlap and the number of potential cross-bridge interactions.
An increase in the sarcomere length lessens the tension produced by decreasing the size of the zone of overlap and also the number of potential cross-bridge interactions. Hence, The given statement “An increase in sarcomere length reduces the tension produced in a muscle fiber by reducing the size of the zone of overlap and the number of potential cross-bridge interactions.” is true.
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