Calcium plays a crucial role in the contraction of skeletal muscles. i. Where is calcium stored before muscle contractions? ii. Describe how calcium is released leading up to a muscle contraction. What signal causes the calcium’s release? iii. Describe the role that calcium plays in the muscle contraction. What is it doing to cause changes to sarcomere length?

Calcium plays a crucial role in the contraction of skeletal muscles. i. Where is calcium stored before muscle contractions? ii. Describe how calcium is released leading up to a muscle contraction. What signal causes the calcium’s release? iii. Describe the role that calcium plays in the muscle contraction. What is it doing to cause changes to sarcomere length?

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter6: The Muscular System

Section: Chapter Questions

Problem 6RQ: Explain why (a) calcium ions and (b) ACh are vital for muscle contraction.

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