The advantage of these systems is that they can function as a remote third ear, one that can be located close to the source of the desired sound. Amplified Telephones Designed for hearing-impaired people, these are special telephone handsets that amplify sound.
The most striking feature of skeletal muscle fibers is the presence of striations that are conspicuous in longitudinally sectioned fibers. The striations are due to the presence of myofibrils, which are cylindrical bundles of thick and thin myofilaments, organized into units of contraction called sarcomeres.he most striking feature of skeletal muscle fibers is the presence of striations that are conspicuous in longitudinally sectioned fibers. The striations are due to the presence of myofibrils, which are cylindrical bundles of thick and thin myofilaments, organized into units of contraction called sarcomeres.
Skeletal striated muscle, or Voluntary muscle, primarily links to bone through tendon, thus enabling through levers of the bones of the human skeleton posturing, upright stance under atmospheric pressure, and voluntary movements.he origin of a muscle is the bone, typically proximal, which has greater mass and is more stable during a contraction than a muscle's insertion. For example, with the latissimus dorsi muscle, the origin site is the torso, and the insertion is the arm.