The upper paired deep bone or cartilage of the hyoid region, sometimes taking part in jaw suspension and which supports the opercle. Dorsally it articulates with the otic capsule at the hyomandibular fossa, ventrally with the quadrate and symplectic. In most Teleostei it has a foramen for the hyomandibular branch of the facial nerve (VII). [ http://en.academic.ru/dic.nsf/en_ichthyology/8715/hyomandibula ]

This is just here as a test because I lose it

Term information

database cross reference
  • TAO:0000672
  • VHOG:0000688
axiom lost from external ontology
  • relationship loss: overlaps preopercle vertical limb-hyomandibula joint (TAO:0005278)[TAO]
  • relationship loss: overlaps hyomandibula-metapterygoid joint (TAO:0001979)[TAO]
  • relationship loss: overlaps hyomandibula-opercle joint (TAO:0005265)[TAO]
  • relationship loss: overlaps quadrate-hyomandibula joint (TAO:0001801)[TAO]
  • relationship loss: overlaps hyomandibular-otic region joint (TAO:0001947)[TAO]
definition
  • The upper paired deep bone or cartilage of the hyoid region, sometimes taking part in jaw suspension and which supports the opercle. Dorsally it articulates with the otic capsule at the hyomandibular fossa, ventrally with the quadrate and symplectic. In most Teleostei it has a foramen for the hyomandibular branch of the facial nerve (VII).
external comment
  • In most teleosts, there is a symplectic, and the hyomandibula articulates with it anteroventrally.[TAO]
external definition
  • Replacement bone that is bilaterally paired and articulates with the neurocranium dorsally and the opercle posteriorly.[TAO]
has exact synonym
  • hyomandibula element
  • hyomandibula - stapes
has related synonym
  • hyomandibula
  • epihyal
homology notes
  • This structure (the hyomandibular), on ontogenic grounds alone, can be considered homologous with the amphibian and reptilian columella and the mammalian stapes.[well established][VHOG]
id
  • UBERON:0011608