what are mixed fibres
Answers
Answer:
Sarcomeres are those functional units that make up muscle fibers. 3 The myofibrillar proteins myosin (the thick filament) and actin are found within each sarcomere (the thin filament). Muscle contraction is enabled by the interaction of these two myofibrillar proteins.
Explanation:
Human skeletal muscle that is made up of a diverse range of muscle fiber types. 1–3 This diversity of muscle fiber types enables human muscles to perform a wide range of functions. Muscle fibers can also change size or fiber type composition to respond to different demands with. The biological basis for many physical therapy procedures aimed at improving a patient's force development or endurance is plasticity. Some of the impairments and limitations seen in patients who are deconditioned due to extended inactivity, limb immobilization, or muscular denervation may be partially due to changes in fibers type composition. 2 The number of approaches for identifying muscle fibers has grown in recent decades, resulting in a variety of categorization schemes. The goal of this update is to present the foundational knowledge needed to read and interpret human skeletal muscle research.