- 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 as discrete masses in the neck or mediastinum throughout adult life. The parafollicular cells of these bodies produce calcitonin. Called also postbranchial or telobranchial b's.
Medical dictionary. 2011.
Look at other dictionaries:
ultimobranchial — 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 * * *… … Medical dictionary
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
postbranchial bodies — ultimobranchial b s … Medical dictionary
telobranchial bodies — telopharyngeal bodies ultimobranchial b s … Medical dictionary
body — 1. The head, neck, trunk, and extremities. The human b., consisting of head (caput), neck (collum), trunk (truncus), and limbs (membra). 2. The material part of a human, as distinguished from the … Medical dictionary
fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with … Universalium
Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… … Universalium
calcitonin — /kal si toh nin/, n. Biochem. a polypeptide hormone that participates in the regulation of calcium levels in vertebrates by inhibiting loss of calcium from bone to the blood. [1960 65; CALCI + TONE + IN2] * * * ▪ hormone also called… … Universalium
Calcitonin — A hormone produced by the thyroid gland that lowers the levels of calcium and phosphate in the blood and promotes the formation of bone. Bone is in a constant state of remodeling whereby old bone is removed by cells called osteoclast and new bone … Medical dictionary
Cranial neural crest — Latin crista neuralis cranialis Code TE E220.127.116.11.2.0.1 The cranial neural crest is a form of neural crest. The cranial neural crest arises in the anterior and populates the face and the pharyngeal arches giving rise to bones, cartilage, n … Wikipedia