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  2. Gastrointestinal wall - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_wall

    This structure consists of connective tissue covered by a simple squamous epithelium, called the mesothelium, which reduces frictional forces during digestive movements. The intraperitoneal regions include most of the stomach, first part of the duodenum, all of the small intestine, caecum and appendix, transverse colon, sigmoid colon and rectum ...

  3. Lamina propria - Wikipedia

    en.wikipedia.org/wiki/Lamina_propria

    The connective tissue of the lamina propria is loose and rich in cells. The cells of the lamina propria are variable and can include fibroblasts, lymphocytes, plasma cells, macrophages, eosinophilic leukocytes, and mast cells. [2] It provides support and nutrition to the epithelium, as well as the means to bind to the underlying tissue.

  4. Connective tissue - Wikipedia

    en.wikipedia.org/wiki/Connective_tissue

    All of the special connective tissue types have been included as a subset of fascia in the fascial system, with blood and lymph classed as liquid fascia. [14] [15] Bone and cartilage can be further classified as supportive connective tissue. Blood and lymph can also be categorized as fluid connective tissue, [2] [16] [17] and liquid fascia. [14]

  5. Tissue (biology) - Wikipedia

    en.wikipedia.org/wiki/Tissue_(biology)

    The classical tools for studying tissues are the paraffin block in which tissue is embedded and then sectioned, the histological stain, and the optical microscope. Developments in electron microscopy , immunofluorescence , and the use of frozen tissue-sections have enhanced the detail that can be observed in tissues.

  6. Leydig cell - Wikipedia

    en.wikipedia.org/wiki/Leydig_cell

    Micrograph showing a cluster of Leydig cells (center of image). H&E stain . Histological section through testicular parenchyma of a boar . 1 Lumen of convoluted part of the seminiferous tubules, 2 spermatids , 3 spermatocytes , 4 spermatogonia , 5 Sertoli cell , 6 myofibroblasts , 7 Leydig cells, 8 capillaries

  7. Striated muscle tissue - Wikipedia

    en.wikipedia.org/wiki/Striated_muscle_tissue

    Striated muscle tissue is a muscle tissue that features repeating functional units called sarcomeres.Under the microscope, sarcomeres are visible along muscle fibers, giving a striated appearance to the tissue.

  8. Human body - Wikipedia

    en.wikipedia.org/wiki/Human_body

    The study of tissues is called histology and is often done with a microscope. The body consists of four main types of tissues. The body consists of four main types of tissues. These are lining cells ( epithelia ), connective tissue , nerve tissue and muscle tissue .

  9. Stroma (tissue) - Wikipedia

    en.wikipedia.org/wiki/Stroma_(tissue)

    Stromal connective tissues are found in the stroma; this tissue belongs to the group connective tissue proper. The function of connective tissue proper is to secure the parenchymal tissue, including blood vessels and nerves of the stroma, and to construct organs and spread mechanical tension to reduce localised stress.