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Related Concept Videos

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Cell division and enlargement are processes that require precise control. The control ensures that cell division cannot proceed unless the cell has grown to a specific size. A spherical, dividing cell requires an approximately 1.6X increase in its surface area to double its volume. The secretory pathway also has a significant role in cell membrane enlargement. Secretory vesicles that bud off from the Golgi apparatus and later fuse with the plasma membrane during exocytosis are a major source of...
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After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
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Hypertrophy is the increase in the size of individual cells, resulting in the enlargement of a tissue or organ. Unlike hyperplasia, which involves an increase in cell number, hypertrophy is characterized by an increase in cell volume. This process often occurs in response to higher functional demand or hormonal stimulation, leading to the production of more structural proteins and organelles, thereby enhancing the cells' work capacity.There are two primary types of hypertrophy:...
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Hyperplasia is an increase in the number of cells in a tissue or organ due to enhanced cell division. It is an adaptive, controlled response to stimuli such as injury, hormones, or stress, involving mitosis to produce genetically identical cells and support tissue repair and regeneration.Tissue CapacityCertain tissues, including the epidermis, intestinal epithelium, bone marrow, and fibroblasts, have a high potential for hyperplasia. Others, such as bone, cartilage, and smooth muscle, show...
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Complications during healing arise when tissue repair is altered by local or systemic factors. These changes involve abnormal collagen deposition, altered biomechanics, and reduced vascular supply, impairing restoration of normal structure and function.Loss of FunctionScar tissue differs significantly from the original tissue it replaces. In the skin, fibrosis lacks adnexal structures such as hair follicles, sebaceous glands, and sweat glands. Their absence reduces tactile sensitivity, impairs...
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Related Experiment Video

Updated: May 2, 2026

Minced Tissue in Compressed Collagen: A Cell-containing Biotransplant for Single-staged Reconstructive Repair
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Tissue expansion.

J Reynolds

    British Journal of Nursing (Mark Allen Publishing)
    |May 10, 1992
    PubMed
    Summary
    This summary is machine-generated.

    Tissue expansion is a popular reconstructive surgery technique for various defects. This article details the methods and outcomes of tissue expansion procedures in plastic surgery.

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    Area of Science:

    • Plastic Surgery
    • Reconstructive Surgery
    • Tissue Engineering

    Background:

    • Tissue expansion is increasingly utilized in reconstructive surgery.
    • It offers a versatile solution for a broad spectrum of defects.
    • The technique involves controlled overstretching of skin and underlying tissues.

    Purpose of the Study:

    • To outline the technique of tissue expansion.
    • To present the results of tissue expansion procedures.
    • To evaluate the efficacy of tissue expansion in reconstructive surgery.

    Main Methods:

    • Detailed description of the tissue expansion technique.
    • Surgical procedures and expansion protocols.
    • Patient selection and follow-up.

    Main Results:

    • Summary of outcomes from tissue expansion.
    • Analysis of complication rates.
    • Assessment of patient satisfaction and functional results.

    Conclusions:

    • Tissue expansion is an effective method for reconstructive surgery.
    • The Bradford plastic surgery unit has achieved positive results.
    • Further evaluation of long-term outcomes is warranted.