Transverse arytenoid | |
---|---|
Anatomical terms of muscle |
The transverse arytenoid is an unpaired intrinsic muscle of the larynx. It is situated deep to the two oblique arytenoids; the oblique and transverse arytenoids are often considered two parts of a single muscle - the interarytenoid (arytenoid) muscle (which is then said to have an oblique part and a transverse part). [1]
The transverse arytenoid bridges the gap between the two arytenoid cartilage in the larynx, occupying the concavity of the lateral surface of each cartilage. [1]
The muscle attaches to both arytenoid cartilages, attaching onto each cartilage at the posterior aspect of its muscular process and the adjacent lateral border of the cartilage. [1]
The muscle receives motor innervation from the two recurrent laryngeal nerves (each being a branch of the ipsilateral vagus nerve (CN X)); the muscle also receives branches from the internal laryngeal branch, though the latter's contribution to the muscle's motor innervation is unclear. [1]
The muscle approximates the two arytenoid cartilages to close the posterior (intercartilaginous) part of rima glottidis. [1]
{{
cite book}}
: CS1 maint: location missing publisher (
link)
Transverse arytenoid | |
---|---|
Anatomical terms of muscle |
The transverse arytenoid is an unpaired intrinsic muscle of the larynx. It is situated deep to the two oblique arytenoids; the oblique and transverse arytenoids are often considered two parts of a single muscle - the interarytenoid (arytenoid) muscle (which is then said to have an oblique part and a transverse part). [1]
The transverse arytenoid bridges the gap between the two arytenoid cartilage in the larynx, occupying the concavity of the lateral surface of each cartilage. [1]
The muscle attaches to both arytenoid cartilages, attaching onto each cartilage at the posterior aspect of its muscular process and the adjacent lateral border of the cartilage. [1]
The muscle receives motor innervation from the two recurrent laryngeal nerves (each being a branch of the ipsilateral vagus nerve (CN X)); the muscle also receives branches from the internal laryngeal branch, though the latter's contribution to the muscle's motor innervation is unclear. [1]
The muscle approximates the two arytenoid cartilages to close the posterior (intercartilaginous) part of rima glottidis. [1]
{{
cite book}}
: CS1 maint: location missing publisher (
link)