Hypoplasia
The hypoplasia (from ancient Greek ὑποπλασία , Neugriechisch υποπλασία , neulateinisch hypoplasia "insufficient cell formation") or numerical atrophy refers to a genetic (congenital or plant-specific) sub development of an organism, organ system, organ, organ part or tissue, which by the reduction in the number, Elementary parts' (cells) of a system (tissue, muscles, etc.). In the broadest sense, this also means the resulting malfunction. The opposite is hyperplasia .
to form
Developmental, pregnancy and age-associated forms of hypoplasia and aplasia are also summarized under the term involution . A strict separation is not always possible in individual cases.
- The hypoplastic constitution ( status hypoplasticus ) is the congenital underdevelopment and poor performance of various parts of the body, the heart , the aorta , the adrenal glands , the genital organs , usually associated with enlargement of the thymus and hyperplasia of the lymphatic apparatus ( lymphatic constitution , status lymphaticus / thymicolymphaticus ), which probably also includes exudative diathesis .
- The pulmonary hypoplasia ( hypoplastic arteria pulmonalis ) stands for the number and size reduction of the airways and alveoli .
literature
- Elsevier, Lingen (Ed.): Medicine. Human. Health. Helmut Lingen Verlag, Cologne 2006.
Web links
Wiktionary: Hypoplasia - explanations of meanings, word origins, synonyms, translations
- Hypoplasia and constitution . textlog.de
- Entry on hypoplasia in Flexikon , a Wiki of the DocCheck company
- Adaptive reactions - atrophy, hypoplasia, involution . Pathology Online