Vocalis Vocal process of
arytenoids cartilage
Vocal ligament Recurrent
laryngeal nerve
Superior and
inferior thyroid
arteries
Tenses anterior vocal ligament
and relaxes posterior vocal
ligament
Transverse
and oblique
arytenoids
Arytenoid cartilage Opposite arytenoid
cartilage
Recurrent
laryngeal nerve
Superior and
inferior thyroid
arteries
Closes intercartilaginous
portion of rima glottides
Joints of the larynx and movements at the joints
Cricothyroid joints
Thyroid cartilage glides and rotates here
Changes length of vocal folds
Cricoarytenoid joints: movement of the arytenoids cartilage on the lamina of the cricoid
Slide towards each other and away from each other
Rotate
Tilt forward and back
Arterial supply to larynx
[Plate 69, Arteries of Oral and Pharyngeal Regions]
Superior laryngeal artery
Through gap in thyrohyoid membrane
Supplies internal larynx
Accompanies by superior laryngeal nerve
Inferior laryngeal artery
Supplies inferior internal larynx
Accompanied by recurrent laryngeal nerve
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page 47
Venous drainage of larynx