Infraglottic cavity

The infraglottic cavity is the portion of the larynx situated inferior to the glottis.^[1] It is situated between the vocal cords (superior limit), and the inferior border of the cricoid cartilage (inferior limit)^[2] where it is continuous with the trachea.^[1]

Infraglottic cavity
Cut through the larynx of a horse 1 hyoid bone 2 epiglottis 3 vestibular fold 4 vocal fold 5 Ventricularis muscle 6 ventricle of larynx 7 Vocalis muscle 8 thyroid cartilage lamina 9 Cricoid cartilage 10 infraglottic cavity 11 first bronchial tube cartilage 12 bronchial tube
Details
Identifiers
Latin	cavitas infraglottica
TA98	A06.2.09.018
TA2	3211
FMA	55311
Anatomical terminology [edit on Wikidata]

On transverse section, the infraglottic cavity appears elliptical in shape superiorly, and circular in shape inferiorly. It is wider inferiorly. The walls of the infraglottic cavity are lined with respiratory epithelium. Structural support is provided by the cricothyroid ligament above, and the cricoid cartilage below.^[2]