Styloauricular muscle
Musculus styloauricularis
- Synonym: Styloauricularis muscle
Definition
The styloauricular muscle is a small fusiform muscle connecting the the tympanic part of the temporal bone to the base of the auricular cartilage.
Origin: temporal bone, ventral to the acoustic meatus, or caudal border of the mandible in the carnivore
Insertion: medio-caudal face of the base of the auricular cartilage
Nerve: auriculopalpebral nerve
Action: it shortens, by contracting, the tube formed by the anular cartilage
Description:
The styloauricularis muscle glides over the cartilaginous external acoustic meatus. Fusiform, vertical and longer in the carnivore, it courses from the caudal face of the mandibular neck (carnivore) or the tympanic part of temporal bone to the medial side of the base of the auricular cartilage.
References
Constantinescu GM, Schaller O. Illustrated veterinary anatomical nomenclature, 3rd Edition, Enke Verlag, Stuttgart, 2012.
Barone R. Anatomie comparée des mammifères domestiques, Tome 2, Arthrologie et myologie, 4th edition, Vigot, Paris, 2017.
