Oblique arytenoid at a glance
- What it is
- An intrinsic laryngeal muscle behind the arytenoid cartilages.
- Location
- Runs from the muscular process of one arytenoid to the apex of the opposite arytenoid, crossing in an X.
- Function
- Narrows the laryngeal inlet and closes the intercartilaginous part of the glottis.
- Body system
- Muscular · paired (left and right)
- FMA ID
- FMA46585 (Foundational Model of Anatomy)
Key facts
- Innervation: recurrent laryngeal nerve (CN X)
- Some fibres continue into the aryepiglottic fold as aryepiglotticus, helping close the laryngeal inlet.
- It lies superficial to the unpaired transverse arytenoid.
Structures next to the oblique arytenoid
The nearest named structures in the 3D model, measured from the centre of each part:
- Transverse arytenoid · muscular
- Arytenoid cartilage · respiratory
- Corniculate cartilage · respiratory
- Posterior crico-arytenoid · muscular
- Cuneiform cartilage · respiratory
- Lateral crico-arytenoid · muscular
- Thyroid cartilage · respiratory
- Cricoid cartilage · respiratory
- Vocalis · muscular
- Vocal ligament · respiratory
References
- Foundational Model of Anatomy: Oblique arytenoid (FMA46585). EMBL-EBI Ontology Lookup Service.
- OpenStax. Anatomy and Physiology 2e, §11.2 Naming Skeletal Muscles. Rice University, 2022.
- Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.
Related anatomy
Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.