Interscutular muscle

Musculus interscutularis

  • Synonym: Interscutularis muscle

Definition

Marjorie Champarou

The interscutularis muscle is large and strong, and consists of transverse fibers from the dorsal median line (carnivore, horse) or the temporal line (pig, ruminants, horse) to the scutiform cartilage. Specifically, in the dog, it is extended directly from one scutiform cartilage to the other without insertion at the dorsal median line.

Origin: temporal line (ruminants and su), external sagittal crest and temporal line (horse), scutiform cartilage (carnivore and or)

Insertion: medio-dorsal border of the scutiform cartilage

Artery: rostral auricular artery

Nerve: auriculopalpebral nerve

Action: elevator of the cartilage of the auricle

Antagonist:  parotidoauricularis muscle

References

Barone R. Anatomie comparée des mammifères domestiques, Tome 2, Arthrologie et myologie, 4th edition, Vigot, Paris, 2017.

Constantinescu GM, Schaller O. Illustrated veterinary anatomical nomenclature. 3rd Edition. Enke Verlag, Stuttgart, 2012.

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