Corpus: Zygomatic arch
This text has been translated by an AI and may sound raw. It will be reviewed shortly. Thank you for your patience!
This text has been translated by an AI and may sound raw. It will be reviewed shortly. Thank you for your patience!
Synonym: zygomatic arch
English:
Definition[Bearbeiten]
Arcus zygomaticus or zygomatic arch is the name given to the prominent bony arch on the side of the facial skull of all domestic mammals.
Anatomy[Bearbeiten]
The convex outwardly curved temporal facies of the temporal bone (os temporale) releases the zygomatic process laterally and rostrally. This forms - together with the zygomatic process of the zygomatic bone (Os zygomaticum) - the zygomatic arch.
The zygomatic arch articulates with the lower jaw. For this purpose, it carries an articular surface for the temporomandibular joint (articulatio temporomandibularis) on the lower surface of the root of the zygomatic process.
In horses and ruminants, the zygomatic arch receives an abutment for the temporomandibular joint from the dorsal side through the zygomatic process of the frontal bone. Such an addition is missing in carnivores and pigs, whose aditus orbitae has a gap. This is bridged by the orbital ligament.
Literature[Bearbeiten]
- Nickel, Richard, August Schummer, Eugen Seiferle. Volume I: Musculoskeletal system. Textbook of the anatomy of domestic animals. Parey, 2004
- König, Horst Erich, Hans-Georg Liebich. Anatomy of Domestic Mammals: Textbook and Colour Atlas for Study and Practice. Schattauer Verlag, 2014.