# Muscle: chemistry of contraction.

Collaborator, Georges R. Maréchal Describes the internal structure of muscles, showing that actin and myosin are the contractile elements of muscle. Uses a model to explain muscle contraction

- Kind: Educational
- Year: 1969
- Runtime: 14 min
- By: Encyclopaedia Britannica Educational Corporation
- Genres: Education, Science, Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/musclechemistryofcontraction)
- Licence or status: none stated by the archive
- Who can watch: Kids profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/musclechemistryofcontraction?play=1)