Muscles can only contract and relax, so they always work in pairs called antagonistic muscles. Skeletal muscle is joined to bones. Its cells contract to make bones move and joints bend.

When fitness experts talk about the body’s major muscle groups and develop training programs, they often refer to skeletal muscles. These include: Many exercises will work at least two different ...

Researchers at UT Southwestern Medical Center have discovered sex-specific differences in how fat accumulates in muscle and ...

Cryo-EM leverages ultra-powerful microscopes to ... the researchers accessed fetal tissue samples from cow skeletal muscles.