Ages

Introduction

Summary

This animation presents the structure and the ultrastructure of skeletal muscle in order to help better understand muscle contraction.

Goals

• To learn the anatomical organization of skeletal muscle.
• To understand muscle contraction at the scales of both the sarcomere and the whole muscle.
• To understand the relationship between sarcomere structure and function.
• To bring out the relationship between the shrinking of the I bands and the sliding of the myofilaments.

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Tags

Muscle contraction sarcomere actin myosin ATP muscle-fiber myofilament myofibril