STRIATED MUSCLE TISSUE Meaning and
Definition
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Striated muscle tissue refers to a type of muscle tissue found in vertebrates that exhibits a striped or striated appearance under a microscope. It is also commonly known as skeletal muscle tissue due to its association with the skeletal system and the ability to move the body voluntarily.
This type of muscle tissue is composed of long, cylindrical cells called muscle fibers or myocytes. Each muscle fiber contains multiple nuclei, which are located on the periphery of the cell. These fibers are bundled together with connective tissue to form a whole muscle, and individual muscle fibers can span the entire length of a muscle.
The striated appearance of this muscle tissue is due to the parallel arrangement of contractile units called sarcomeres within the muscle fibers. Each sarcomere contains two types of protein filaments – thick filaments called myosin and thin filaments called actin. The overlapping arrangement of these filaments gives the muscle fiber its striated appearance.
Striated muscle tissue is characterized by its voluntary control, meaning it is under conscious control and can be consciously contracted and relaxed to produce movement. It is responsible for various voluntary movements such as walking, running, and lifting objects. Additionally, it is highly adaptable and can increase in size and strength through regular exercise and resistance training. This type of muscle tissue is also important for maintaining posture and stability.
In summary, striated muscle tissue is a specialized muscle tissue found in vertebrates, characterized by its striped appearance under a microscope. It is involved in voluntary movement and is composed of long, cylindrical fibers packed with sarcomeres responsible for contraction and relaxation.
Common Misspellings for STRIATED MUSCLE TISSUE
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