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  2. Scleroderma - Wikipedia

    en.wikipedia.org/wiki/Scleroderma

    Scleroderma is a group of autoimmune diseases that may result in changes to the skin, blood vessels, muscles, and internal organs. [2] [6] [8] The disease can be either localized to the skin or involve other organs, as well. [2]

  3. Ground tissue - Wikipedia

    en.wikipedia.org/wiki/Ground_tissue

    Sclerenchyma is the tissue which makes the plant hard and stiff. Sclerenchyma is the supporting tissue in plants. Two types of sclerenchyma cells exist: fibers cellular and sclereids. Their cell walls consist of cellulose, hemicellulose, and lignin. Sclerenchyma cells are the principal supporting cells in plant tissues that have ceased elongation.

  4. Sclereid - Wikipedia

    en.wikipedia.org/wiki/Sclereid

    Sclereids are a reduced form of sclerenchyma cells with highly thickened, lignified cellular walls that form small bundles of durable layers of tissue in most plants. [1] The presence of numerous sclereids form the cores of apples and produce the gritty texture of guavas .

  5. Systemic scleroderma - Wikipedia

    en.wikipedia.org/wiki/Systemic_scleroderma

    Systemic scleroderma, or systemic sclerosis, is an autoimmune rheumatic disease characterised by excessive production and accumulation of collagen, called fibrosis, in the skin and internal organs and by injuries to small arteries. There are two major subgroups of systemic sclerosis based on the extent of skin involvement: limited and diffuse ...

  6. Palmoplantar keratoderma - Wikipedia

    en.wikipedia.org/wiki/Palmoplantar_keratoderma

    Aquagenic keratoderma, also known as acquired aquagenic palmoplantar keratoderma, [4]: 788 transient reactive papulotranslucent acrokeratoderma, [4] aquagenic syringeal acrokeratoderma, [4] and aquagenic wrinkling of the palms, [2] is a skin condition characterized by the development of white papules on the palms after water exposure.

  7. Cortex (botany) - Wikipedia

    en.wikipedia.org/wiki/Cortex_(botany)

    Sclerenchyma 6. Cortex 7. Epidermis. In botany, a cortex is an outer layer of a stem or root in a vascular plant, lying below the epidermis but outside of the vascular bundles. [1] The cortex is composed mostly of large thin-walled parenchyma cells of the ground tissue system and shows little to no structural differentiation. [2]

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  9. Mesenchyme - Wikipedia

    en.wikipedia.org/wiki/Mesenchyme

    Mesenchyme (/ ˈ m ɛ s ə n k aɪ m ˈ m iː z ən-/ [1]) is a type of loosely organized animal embryonic connective tissue of undifferentiated cells that give rise to most tissues, such as skin, blood or bone. [2] [3] The interactions between mesenchyme and epithelium help to form nearly every organ in the developing embryo. [4]