Click on the structure to specify the target of your label
 |
 |
 |
||
 |
 |
 |
 |
 |
01 |  |
Oblique arytenoid
Other Terms: Arytenoideus obliquus, Musculus arytenoideus obliquus, Muscle aryténoïdien oblique
Muscle parts
Ary-epiglottic part
Latin name
Musculus arytenoideus obliquus
Latin muscle parts
Pars aryepiglottica
Group
Branchial arch muscle – sixth arch (Laryngeal muscle)
Etymology
The English name for this muscle is the slanting muscle of the ladle shaped cartilage. The term arytenoideus comes from the Greek arytaina meaning “ladle or dipper” and the suffix eidos meaning “shape or form.”The Latin term obliquus means slanting or sideways and describes how the muscle approaches the cartilage at an angle.
Origin
Muscular process of one arytenoid cartilage
Insertion
Apex of the opposite arytenoid cartilage
Action
Adduct the aryepiglottic folds to help close the laryngeal inlet.
Nerve supply
Vagus nerve (Cranial nerve X)
Blood supply
The laryngeal muscles receive blood from both the subclavian and external carotid arteries. The thyrocervical trunk of the subclavian gives rise to the inferior thyroid, which gives rise to the inferior laryngeal artery. This artery enters the larynx from below. Entering the larynx from above is the superior laryngeal artery, which is a branch of the superior thyroid artery from the external carotid.
Latin
Musculus arytenoideus obliquus
French
Muscle aryténoïdien oblique
