vävnadsorgan

Vävnadsorgan is a Swedish term used in anatomy to denote an organ, a distinct structure of the body that performs one or several specific physiological functions. A vävnadsorgan is composed of tissues—the organized assemblies of cells and extracellular matrix—whose coordinated activity produces the organ’s function. In many contexts the term emphasizes the tissue-based composition of the structure, even though it corresponds to the standard concept of an organ.

Most vävnadsorgan contain several tissue types. The parenchyma comprises the functional cells responsible for the organ’s primary activity, while the stroma provides supportive elements such as connective tissue, blood vessels, and nerves. Common tissue types include epithelium, connective tissue, muscle tissue, and nervous tissue. The arrangement of these tissues into particular architectures—such as layers, ducts, lobes, or compartments—underpins the organ’s operation.

Developmentally, vävnadsorgan form during embryogenesis from the three germ layers, and their mature structure results from processes of growth, differentiation, and morphogenesis. Functionally, organs do not act in isolation; they operate within organ systems and contribute to the organism’s homeostasis through integrated regulation, metabolism, and response to stimuli.

Clinical relevance: organ damage, congenital anomalies, disease processes, and organ transplantation illustrate the importance of organ-level organization. Advances in histology and anatomy continue to deepen understanding of how tissue composition and architecture determine function.

See also: vävnad, organ, histologi, fysiologi, transplantation.