Which statement defines elasticity in muscle tissue?

• A. Contracts to produce movement
• B. Can be stretched and returns to original length
• C. Is responsible for muscle strength
• D. Relies on nerve impulses to function

Answer: (B)

Elasticity is the muscle’s ability to be stretched and then return to its original length. This passive recoil helps muscles and connective tissues absorb stretch, store a little energy, and snap back to resting length between movements. Within muscle, elasticity comes from structural elements like the connective tissue sheaths and from elastic proteins such as titin in the sarcomere, which act like springs. This is different from contractility, which is the muscle shortening to produce movement, and from other factors like nerve activation that trigger activity. So the idea of being able to stretch and then regain the original length best captures what elasticity means in muscle tissue.