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Obliquus auriculae

Other Terms: Obliquus auriculae, Obliquus auricularis muscle, Oblique muscle of pinna, Musculus obliquus auriculae, Muscle oblique de l'auricule

Muscle parts

None

Latin name

Musculus obliquus auriculae

Latin muscle parts

None

Group

Branchial arch muscle – second arch (Auricular muscle)

Etymology

In English, this muscle’s name is the slanting muscle of the ear. The Latin term obliquus means slanting or sideways and describes how the muscle angles across the pinna. The term auriculae is from the Latin auris meaning “ear” combined with the diminutive ending cula meaning “little.”

Origin

Ementia conchae of the cartilage of the external ear.

Insertion

Ementia triangularis of the cartilage of the external ear.

Action

Help flatten the cranial profile of the auricular cartilage. While this is a potential action in some individuals, in the majority of individuals the muscle modifies auricular shape to a minimal degree.

Nerve supply

Facial nerve (Cranial nerve VII)

Blood supply

Auricular branches of the posterior auricular and occipital arteries.

Latin

Musculus obliquus auriculae

French

Muscle oblique de l'auricule

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