MICROANATOMY

Detailed explanation-1: -Extensibility is the ability of a muscle to be stretched. For instance, let’s reconsider our elbow flexing motion we discussed earlier. In order to be able to flex the elbow, the elbow extensor muscles must extend in order to allow flexion to occur. Lack of extensibility is known as spasticity.

Detailed explanation-2: -All muscle tissues have four functional properties in common which include excitability, contractility, extensibility, and elasticity.

Detailed explanation-3: -Muscle tissue is composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts.

Detailed explanation-4: -Muscles are full of springs. The elastic properties of cross-bridges, and actin, myosin and titin filaments, as well as collagen fibers within the ECM, are central to their function. The elastic behavior of these structures has been characterized, and we can predict their mechanical action as springs.

Detailed explanation-5: -Extensibility is one of the most important characteristics of muscle tissues. It is defined as the ability of the muscle tissues to stretch beyond their normal resting length and still undergo contraction normally without damage.