quadratojugal bone

Term ID

UBERON:0011267

Synonyms

• quadratjochbeine
• quadrato-jugals
• quadrato-maxillare
• quadratojugal
• quadratojugale
• tympano maleaux

Definition

The quadratojugal is a small jaw bone that is present in most amphibians, reptiles, and birds, but has been lost in mammals. It is connected to the jugal as well as other bones, though these may vary with species. The quadratojugal bone is a small bone between the cheek and otic notch (Lecointre 380). Squamates (lizards and snakes) lack a quadratojugal bone (Schwenk 193). http://en.wikipedia.org/wiki/Quadratojugal_bone

References

• AAO:0000532
• Quadratojugal:bone

Ontology

Uberon Ontology