Anatomy study note · Head and neck

Arytenoid muscles

The transverse arytenoid joins the two arytenoids; the oblique arytenoids cross behind it to the opposite apex.

Key points

• Transverse: closes the back of the glottis.
• Oblique: narrows the inlet.
• Recurrent laryngeal.
• From the fourth and sixth pharyngeal arch → vagus.
• Skeletal muscle: multinucleated, peripheral nuclei, striated.
• Epimysium → perimysium → endomysium.

The full note in the atlas also covers

Origin · Insertion · Action · Nerve supply · Histology · Development

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Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 12, PDF pp. 1785–1788
• Inderbir Singh’s Human Embryology, ch. 9, PDF pp. 120, 122, 125
• BRS Cell Biology & Histology, 7th ed., ch. 8, PDF pp. 135–144

More from the head and neck

• Cerebellum
• Cerebrum
• Cervical plexus
• Ciliary body
• Common carotid artery
• Common tendinous ring
• Cornea
• Corniculate and cuneiform cartilages
• Corpus callosum
• Corpus striatum
• Cricoid cartilage
• Cricothyroid

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