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Individual muscle fibers are formed during development from the ... The principal cytoplasmic proteins are myosin and actin (also known as "thick" and "thin" filaments, respectively) which are arranged in a repeating unit called a ... about 1 micrometer in diameter each containing myofilaments.


A myocyte is the type of cell found in muscle tissue. Myocytes are long, tubular cells that ... Thick filaments, composed of protein molecules called myosin. ... At the end of each muscle fiber, the outer layer of the sarcolemma combines with tendon fibers. ... GATA4 and GATA6 also play a role in myocyte differentiation.


The muscle fibers bound together by the endomysium form a bundle called a fascicle. ... Each muscle fiber is also controlled by a nerve that forms a single ...


Parallel or fusiform: as their name implies their fibers run parallel to each other. These ... They may also be called myofibers or muscle fibers. Each muscle cell is  ...


Sep 24, 2008 ... Each individual skeletal muscle fiber extends over much of the length of ... In contrast, cardiac muscle (which like skeletal muscle is also ... The unique contractile cytoplasm of muscle fibers is called sarcoplasm (sarco = flesh).


... muscle. The perimysium is a connective tissue layer that surrounds each fascicle. ... The dark bands within a muscle fiber are called A bands, while the ... Slow fibers are also called red fibers because they contain the red pigment myoglobin.


Each organ or muscle consists of skeletal muscle tissue, connective tissue, ... Each bundle of muscle fiber is called a fasciculus and is surrounded by a layer ... The coverings also provide pathways for the passage of blood vessels and nerves.


Skeletal muscles also protect internal organs (particularly abdominal and pelvic ... Each skeletal muscle has three layers of connective tissue (called “mysia”) that ... Inside each fascicle, each muscle fiber is encased in a thin connective tissue ...


Diagram of the Structure of a Muscle Cell (also called a muscle fibre). ... The structure of muscle fibers is included in courses in human biology and human anatomy ... Links to information about each of the terms featured in the illustration (left):.