OntologiesuberonclassesUBERON:0003091   
JSON document
thyroid primordium
http://purl.obolibrary.org/obo/UBERON_0003091

The initial thyroid precursor, the thyroid primordium, starts as a simple midline thickening and develops to form the thyroid diverticulum. This structure is initially hollow, although it later solidifies and becomes bilobed. The 2 lobes are located on either side of the midline and are connected via an isthmus.

Also appears inoaehcaocpontmaxomondo + 6
Related Synonyms
thyroid primordia
class Information
external_definition

Portion of tissue part of the pharyngeal endoderm that is fated to become thyroid follicle[ZFIN:curator].

external_ontology_notes

Note that we follow EHDAA2 in dividing this into endoderm and mesenchyme. In this ontology we place the broad developmental relationship at this level, and include specific relationships to the pharyngeal endoderm at the level of the endoderm

has_obo_namespace

uberon

taxon_notes

In all vertebrates the thyroid arises from the ventral aspect of the second pouch

class Relations