cricothyroid muscle
Intrinsic muscle of the larynx, innervated by the external division of the laryngeal nerve, a branch of the vagus nerve. It attaches to the anterolateral surface of the cricoid cartilage and the external surface of the thyroid cartilage. Every claim on this page comes from the Leumas anatomy graph and carries its source.
What the cricothyroid muscle is
Intrinsic muscle of the larynx, innervated by the external division of the laryngeal nerve, a branch of the vagus nerve. It attaches to the anterolateral surface of the cricoid cartilage and the external surface of the thyroid cartilage. The atlas records it as a muscle at the organ scale in the human body.
Where the cricothyroid muscle is
It sits in the neck, within the muscular and respiratory systems. Not positioned individually, and containment is not asserted either. Drawn near structures of the same kind, which is a weak claim about location.
What the cricothyroid muscle connects to
The atlas records 7 typed relationships for it, across 6 kinds of connection. a kind of laryngeal intrinsic muscle.
Supply and innervation
Innervation: vagus nerve.
Also called
Also recorded as M. cricothyroideus, cricothyroid, cricothyroideus and musculus cricothyroideus. Searching any of those names reaches this page.
Source
Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001566, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.
- A kind of: laryngeal intrinsic muscle.
- Attaches to: cricoid cartilage and thyroid cartilage.
- Innervated by: vagus nerve.
- inserts into: thyroid cartilage.
- originates from: cricoid cartilage.
- subtype: inferior pharyngeal constrictor.
Questions
Where is the cricothyroid muscle?
It sits in the neck, within the muscular and respiratory systems. Not positioned individually, and containment is not asserted either. Drawn near structures of the same kind, which is a weak claim about location.
What does the cricothyroid muscle connect to?
A kind of: laryngeal intrinsic muscle.
Is the cricothyroid muscle the same in other species?
Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.