An outpocketing of one of the caudal pharyngeal pouches that is comprised on calcitonin-producing parafollicular cells. [ http://en.wikipedia.org/wiki/Ultimopharyngeal_body https://www.worldcat.org/search?q=bn%3A0073040584 MP:0003955 ]

This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, pheno_slim, vertebrate_core

definition

An outpocketing of one of the caudal pharyngeal pouches that is comprised on calcitonin-producing parafollicular cells.

editor note

TODO - ensure developmental relationships correct across species. WP says pouch 4, but this isn't supported by Kardong (table 13.1 or fig 15.5). MP says 'fifth pouch in human or as the ventral component of the fourth pouch in mouse'. EHDAA2 says 6th arch mesenchyme http://www.ncbi.nlm.nih.gov/pubmed/16313389 says: the most posterior pouch generates the ultimobranchial bodies in most vertebrate classes, but mammals do not contain this structure

external definition

Anatomical structure which includes small, calcitonin producing glands originating as epithelial growths from the sixth pharyngeal pouch.[AAO]

The glandular tissue originating from the fifth branchial pouch which combines with the buccal cavity outgrowth to form the thyroid and contributes calcitonin-secreting cells to the gland. [TFD][VHOG]

has exact synonym

corpus ultimopharyngeum

ultimopharyngeal body

ultimopharyngeal gland

ultimobranchial gland

has related synonym

telopharyngeal body

ultimobranchial bodies

postbranchial body

telobranchial body

ultimobranchial

homology notes

(...) ultimobranchial bodies that develop in all vertebrates from the ventral or posterior surface of the last pair of pharyngeal pouches. The ultimobranchial bodies are vestigial in most mammals (...).[well established][VHOG]

id

UBERON:0003092

taxon notes

The ultimobranchial bodies of lower vertebrates contain large amounts of calcitonin. In mammals the bodies fuse with the thyroid gland and are thought to develop into the parafollicular cells. (Stedman, 25th ed)

In humans, the ultimobranchial body is an embryological structure that gives rise to the calcitonin-producing cells - also called parafollicular cells or clear cells - of the thyroid gland. In humans, this body is a derivative of the ventral recess of the fourth pharyngeal pouch (or fifth)