Ages

Introduction

Summary

This animation presents the molecular mechanisms of muscle contraction.

Goals

• To understand the molecular mechanisms involved in muscle contraction.
• To understand muscle contraction at the levels of both the sarcomere and the entire muscle.
• To clarify the principal stages of muscle contraction.
• To clarify the roles of myofilaments of actin and myosin.
• To understand the role of ATP in muscle contraction.
• To understand how changes in the conformation  of myosin permits the sliding of myofilaments.

Features

Use the controls at upper right to proceed through this animation.

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Tags

muscle contraction sarcomere actin myosin ATP muscle-fiber myofilament