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ultimobranchial body

   Also found in: Medical, Wikipedia 0.01 sec.
ultimobranchial body [¦əl·tə·mō′braŋ·kē·əl ′bäd·ē]
(embryology)
One of the small, endocrine structures which originate as terminal outpocketings from each side of the embryonic vertebrate pharynx; can produce the hormone calcitonin.
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The superior parathyroid gland and the ultimobranchial body develop from the fourth branchial pouch, also in the vicinity of the piriform sinus.
A third branchial pouch cyst presenting as a lateral neck mass in an ... by Spiegel, Joseph R. / Ear, Nose and Throat Journal
Cells from the neural crest descend to the ultimobranchial body and finally migrate to amalgamate with the thyroid tissue and form the parafollicular cells (C cells).
A case of papillary carcinoma arising in ectopic thyroid tissue ... by Ghareeb, Essan / Ear, Nose and Throat Journal
1) As noted in the table, fourth branchial pouch anomalies virtually always occur on the left side, which is thought to be due to diminished growth of the right ultimobranchial body.
Various presentations of fourth branchial pouch anomalies by Hengerer, Arthur S. / Ear, Nose and Throat Journal
 
 
 
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