This animation presents the molecular mechanisms of muscle contraction.
Learning 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.
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Locomotion is enabled by the contraction of skeletal muscles. A skeletal muscle is made up of bundles, with each bundle made up of a collection of muscle cells called muscle fibers. Each such…