Muscle: Chemistry Of Contraction (1969)

*Muscle: Chemistry of Contraction* (1969) is an **educational science film** produced by **Encyclopedia Britannica Educational Corporation (EBEC)**. The film explores the **internal structure of muscles**, using **models and visual demonstrations** to explain the **process of muscle contraction**. It presents the **scientific challenge of understanding the chemical reactions behind muscle movement**, introducing the **sliding rod theory** as a key explanation. The film also examines the role of **actin, myosin, and adenosine triphosphate (ATP)** in controlling muscle activity, providing a **detailed look at the biochemistry of movement**. Designed as a **resource for biology and physiology education**, the film helps students understand the **complex interactions between molecular components in muscular function**.