Sliding Filament Theory

Sliding Filament Theory


  1.  The process starts with the sarcoplasmic reticulum is stimulated to release calcium ions into the muscle.
  2. Then the calcium ions bind to the troponin-tropomyosin and drags off the cross bridges of the myosin
  3. Cross bridges bind to actin with ATP
  4. Cross bridges pull on actin so it slides to the middle of the sarcomere which contracts the muscle
  5. Cross bridges detract from the actin and ATP changes into ADP+P
  6. Muscle fiber relaxes
  7. Calcium close and transport pump carries calcium through transport pump into the sarcoplasmic reticulum 




https://www.ptdirect.com/training-design/anatomy-and-physiology/skeletal-muscle-the-physiology-of-contraction

Comments

Post a Comment

Popular posts from this blog

Function

Description of the Four Characteristics of Muscle Excitability - ability to receive and respond to a stimulus Contractility - ability to shorten Extensibility - ability to stretch Elasticity - ability of a muscle fiber to resume its resting length after contraction or stretching What do these four characteristics allow the muscles to do? These 4 characteristics allow muscles to perform important functions, including movement, maintaining posture, supporting soft tissues within body cavities, guarding entrances and exits of the body, and maintaining body temperature.
Read more