Science Secrets · Drawing 27 of 40
Bones and Muscles Work Together
The Human Body
To bend your elbow, muscles contract and pull on bones. The joint allows movement. This model lets us compare the arm and its connections.
Did you know?
Muscles that move bones often work in opposing groups.
Look together
Where does the model arm bend?
An idea to try
Gently bend and straighten your elbow through a comfortable movement. With an adult, compare the positions with the model.
For the adult reading along
A little more to discover
This model simplifies skeletal muscles, tendons and a joint. Not all muscles move bones; the heart and other organs also contain muscles.
Sources and illustration notes (1)
Simplified scene and shapes. Models, imagined comparisons and enlargements do not preserve all real measurements.
These links lead to other websites. Explore them with an adult. References identify the institution and the related lesson; some linked pages are in French.
- Nemours KidsHealth: Your MusclesTo bend your elbow, muscles contract and pull on bones. The joint allows movement. This model lets us compare the arm and its connections.
Source review: 2026-10-12. Illustrations are simplified for colouring.
