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The laryngeal cavity (cavity of the larynx) extends from the laryngeal inlet downwards to the lower border of the cricoid cartilage where it is continuous with that of the trachea. [ 11 ] [ 12 ] It is divided into two parts by the projection of the vocal folds , between which is a narrow triangular opening, the rima glottidis .
The vagus nerves, from which the recurrent laryngeal nerves branch, exit the skull at the jugular foramen and travel within the carotid sheath alongside the carotid arteries through the neck. The recurrent laryngeal nerves branch off the vagus, the left at the aortic arch, and the right at the right subclavian artery. The left RLN passes in ...
The laryngopharynx includes three major sites: the pyriform sinus, postcricoid area, and the posterior pharyngeal wall. Like the oropharynx above it, the laryngopharynx serves as a passageway for food and air and is lined with a stratified squamous epithelium. It is innervated by the pharyngeal plexus and by the recurrent laryngeal nerve.
It contains the vestibular folds, and between these and the vocal folds are the laryngeal ventricles. [1] The vestibule is an opening in the lateral wall of the larynx, between the vestibular fold above and the vocal folds below. It is the inlet to another cavity in the lateral wall of larynx, the laryngeal ventricle.
The laryngeal inlet (laryngeal aditus, laryngeal aperture) is the opening that connects the pharynx and the larynx. Aditus of larynx. Borders.
The carina is around the area posterior to where the aortic arch crosses to the left of the trachea. [4] The azygos vein crosses right to the trachea above the carina. [ 6 ]
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.
The larynx contains vocal cords, the epiglottis (preventing food/liquid inhalation), and an area known as the subglottic larynx, in children it is the narrowest section of the upper part of the throat. [6] [7] The jugulum is a low part of the throat, located slightly above the breast. [8]