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  • Ian Jay B. Francisco posted an update in the group Group logo of Histology Art – E (2022)Histology Art – E (2022) 4 years, 7 months ago

    • Muscle tissue is extensible and elastic, meaning it is stretchable and undergoes reshaping. Muscle cells are special in that they are contractile. Actin and myosin filaments slide together to contract.

      The hallmark of this type is its well-organized cell bundles. Their fiber bundles are all parallel and different from the surrounding connective tissue. Thus, you can classify the contractile units of this muscle according to appearance.

      • Skeletal muscle: The skeletal muscle controls the body’s voluntary movements. Skeletal muscle contraction is quick and powerful, with large, cylindrical, elongated cells.
      • Cardiac muscle: Gap junctions coordinate the involuntary movement of the heart muscle. Intercalated disks are a major property of heart muscle tissue. As a result, cardiac muscle fibers branch and extend.
      • Smooth muscle: Smooth muscle tissue surrounds arteries and tubular organs like the intestine. These cells are spindle-shaped with a single nucleus with slow, weak involuntary movements.

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