Skeletal muscle fiber contractions are caused by the interaction between the ________ and the ________ filaments of the sarcomeres.

Question

Quizplus · Accepted Answer

Skeletal muscle fiber contractions are caused by the interaction between the thin and thick filaments of the sarcomeres. The thin filaments are made up of actin while the thick filaments are made up of myosin. When these filaments interact, it results in the sliding of the filaments and shortening of the sarcomeres, leading to muscle contraction. Nebulin and titin are structural proteins found in skeletal muscle but do not directly contribute to muscle contraction.

Skeletal Muscle Fiber Contractions Are Caused by the Interaction Between