Myofibrils
Definition
Myofibrils are the basic rod-like units of muscle cells that are responsible for muscle contraction and growth.
Scientific / Technical Definition
Myofibrils are elongated contractile threads found in striated muscle cells. They are composed of repeated sections called sarcomeres, which house the actin and myosin filaments necessary for muscle contraction. The arrangement of these filaments gives skeletal and cardiac muscles their striated appearance under a microscope.
Benefits
- Enhance muscle contraction and strength.
- Contribute to muscle growth and repair.
- Improve overall athletic performance.
Examples
- Myofibrils are not found in foods but are critical components of muscle tissue in both humans and animals.
Additional Information
- importance: Myofibrils are important for muscle function and adaptation because they enable muscles to contract efficiently and respond to physical demands.
Last updated: 10/19/2024