The first of the series of pharyngeal arches that develop into jaw bones or their homologs, and their associated nerves and arteries [ http://orcid.org/0000-0002-6601-2165 ]

Synonyms: first branchial arch 1st pharyngeal arch first visceral arch mandibular arch first pharyngeal arch branchial arch 1 visceral arch 1

This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, pheno_slim, vertebrate_core

taxonomic disambiguation
branchial arch 1

taxonomic disambiguation
first branchial arch

taxonomic disambiguation
first visceral arch

taxonomic disambiguation
visceral arch 1

depicted by

http://upload.wikimedia.org/wikipedia/commons/2/2d/Gray48.png

external definition

The first of the series of bony or cartilaginous arches that develop in the walls of the mouth cavity and pharynx of the embryo.[AAO]
the first arch which contributes to development of mastication muscles, maxilla, mandible, incus, malleus, Meckel's cartilage, trigeminal nerve, and maxillary artery

has related synonym

arcus pharyngeus primus
1st arch
1st visceral arch

homology notes

A conserved feature of all vertebrate embryos is the presence of a series of bulges on the lateral surface of the head, the pharyngeal arches; it is within these structures that the nerves, muscles and skeletal components of the pharyngeal apparatus are laid down. The pharyngeal arches are separated by endodermal outpocketings, the pharyngeal pouches.[well established][VHOG]

id

UBERON:0004362