FOUNDATIONAL TERM
Sarcomere
肌节
A repeated basic contractile unit in a myofibril.
Study this concept in context
20 · How bones, joints and muscles produce movement
Movement emerges from cooperation among bones, joints, muscles and nerves. Lifting a cup involves molecular contraction, torque, stability and feedback; muscle shortening is only one possibility.
Sources
- OpenStax: bone structure
- OpenStax: synovial joints
- OpenStax: muscle fiber contraction and relaxation
- OpenStax: nervous system control of muscle tension
- OpenStax: interactions of skeletal muscles their fascicle arrangement and their lever systems
- OpenStax: bone formation and development
Definitions come from the published lessons. Read the linked lesson for mechanisms, conditions and examples.