The meaning and formation of sarcomeres and the formation of A, I and H bands. Introduction: The contraction and relaxation of muscles are possible due to the presence of myosin protein. The molecule contains two globular heads and one long tail. The shape is asymmetrical and large. The cross-bridges are formed when the globular heads of the myosin filaments are bound to the actin filaments in the overlapping region of thick and thin filaments. The cross-bridges formed between the actin and myosin filaments are used to determine the amount of tension that a muscle fiber can produce.

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Chapter 9.3, Problem 14AYP

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The meaning and formation of sarcomeres and the formation of A, I and H bands.

Introduction:

The contraction and relaxation of muscles are possible due to the presence of myosin protein. The molecule contains two globular heads and one long tail. The shape is asymmetrical and large. The cross-bridges are formed when the globular heads of the myosin filaments are bound to the actin filaments in the overlapping region of thick and thin filaments. The cross-bridges formed between the actin and myosin filaments are used to determine the amount of tension that a muscle fiber can produce.

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