MUSCLE PHYSIOLOGY

Detailed explanation-1: -Troponin is a calcium-regulatory protein for the calcium regulation of contractile function in skeletal and cardiac muscles. Troponin is distributed regularly along the entire length of thin filaments and forms an ordered complex with tropomyosin and actin.

Detailed explanation-2: -Troponin is found in both skeletal muscle and cardiac muscle, but the specific versions of troponin differ between types of muscle.

Detailed explanation-3: -Skeletal Muscle Disorders: A Noncardiac Source of Cardiac Troponin T.

Detailed explanation-4: -Troponin is a complex of three proteins that is integral to muscle contraction in skeletal and cardiac muscle, but not smooth muscle. Troponin is attached to the protein tropomyosin and lies within the groove between actin filaments in muscle tissue.

Detailed explanation-5: -Very high levels of troponin are a sign that a heart attack has occurred. Most patients who have had a heart attack have increased troponin levels within 6 hours. After 12 hours, almost everyone who has had a heart attack will have raised levels. Troponin levels may remain high for 1 to 2 weeks after a heart attack.