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  2. Parenchyma - Wikipedia

    en.wikipedia.org/wiki/Parenchyma

    Lung parenchyma showing damage due to large subpleural bullae. Parenchyma (/ p ə ˈ r ɛ ŋ k ɪ m ə /) [1] [2] is the bulk of functional substance in an animal organ or structure such as a tumour. In zoology, it is the tissue that fills the interior of flatworms. In botany, it is some layers in the cross-section of the leaf. [3]

  3. Aerenchyma - Wikipedia

    en.wikipedia.org/wiki/Aerenchyma

    Aerenchyma in stem cross section of a typical wetland plant. Aerenchyma or aeriferous parenchyma [1] or lacunae, is a modification of the parenchyma to form a spongy tissue that creates spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root. [2]

  4. Organ (biology) - Wikipedia

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

    The English word "organ" dates back to the twelfth century and refers to any musical instrument. By the late 14th century, the musical term's meaning had narrowed to refer specifically to the keyboard-based instrument. At the same time, a second meaning arose, in reference to a "body part adapted to a certain function". [15]

  5. Pleura - Wikipedia

    en.wikipedia.org/wiki/Pleura

    The pulmonary pleura covers the entire lung parenchyma. It meets the mediastinal pleura at the root of the lung ("hilum") through a smooth fold known as pleural reflection . A bell sleeve -like extension of the pulmonary pleura hanging under to the hilum is known as the pulmonary ligament .

  6. Stroma (tissue) - Wikipedia

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

    Stroma (from Ancient Greek στρῶμα ' layer, bed, bed covering ') is the part of a tissue or organ with a structural or connective role. It is made up of all the parts without specific functions of the organ - for example, connective tissue, blood vessels, ducts, etc.

  7. Ground tissue - Wikipedia

    en.wikipedia.org/wiki/Ground_tissue

    Parenchyma is a versatile ground tissue that generally constitutes the "filler" tissue in soft parts of plants. It forms, among other things, the cortex (outer region) and pith (central region) of stems, the cortex of roots, the mesophyll of leaves, the pulp of fruits, and the endosperm of seeds.

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  9. Stromal cell - Wikipedia

    en.wikipedia.org/wiki/Stromal_cell

    Stromal cells can become connective tissue cells of any organ, for example in the uterine mucosa (endometrium), prostate, bone marrow, lymph node and the ovary. They are cells that support the function of the parenchymal cells of that organ. The most common stromal cells include fibroblasts and pericytes.