- In embryology, relating to the caudal-most pharyngeal pouch. [L. ultimus, last, + G. branchia, gills]
* * *ul·ti·mo·bran·chi·al .əl-tə-mō-'braŋ-kē-əl adj being, relating to, produced by, or derived from the ultimobranchial bodies
* * *ul·ti·mo·bran·chi·al (ul″tĭ-mo-brangґke-əl) [L. ultimus last + branchial] pertaining to or derived from the fourth pharyngeal pouch. Called also ultimopharyngeal.
Medical dictionary. 2011.
Look at other dictionaries:
ultimobranchial — adjective Designating the fifth (last) pharyngeal pouch of the embryo … Wiktionary
ultimobranchial — ul·ti·mo·branchial … English syllables
ultimobranchial — |əltəmō+ adjective Etymology: Latin ultimus last + English o + branchia + al : relating to or derived from the last gill pouch … Useful english dictionary
ultimobranchial body — n a hollow vesicle that is formed from the fourth pharyngeal pouch, may represent a fifth pharyngeal pouch, and gives rise to cells that produce calcitonin and later become incorporated into the thyroid gland in higher vertebrates or persist as… … Medical dictionary
Ultimobranchial body — Infobox Embryology Name = PAGENAME Latin = GraySubject = GrayPage = Caption = Caption2 = System = CarnegieStage = Precursor = fourth pharyngeal pouch GivesRiseTo = parafollicular cells MeshName = Ultimobranchial+body MeshNumber = A13.939… … Wikipedia
ultimobranchial gland — ▪ anatomy in biology, any of the small bodies in the pharynx that develop behind the fifth pair of gill pouches in the vertebrate embryo. In mammals the ultimobranchial tissue has become incorporated into the parafollicular cells of the… … Universalium
ultimobranchial gland — a paired endocrine gland producing calcitron which helps regulate the calcium level by lowering it. Located between the ventral wall of the oesophagus and the sinus venosus. See also corpuscles of Stannius … Dictionary of ichthyology
ultimobranchial bodies — embryonic derivatives of the fourth pharyngeal pouches (sometimes described as a rudimentary fifth pouch); they migrate along with the parathyroid glands and are incorporated in the thyroid gland. In vertebrates other than mammals, these remain… … Medical dictionary
ultimobranchial cells — parafollicular c s … Medical dictionary
ultimobranchial glands — see under body … Medical dictionary