Appendix of the laryngeal ventricle
Encyclopedia
The appendix of the laryngeal ventricle (also the laryngeal saccule, laryngeal pouch, or Hilton's pouch) is a diverticulum
(membranous sac) which extends vertically from the ventricle of the larynx
. It runs between the vestibular fold
, thyroarytenoid muscle
, and thyroid cartilage
, and is conical, bending slightly backward. It is covered in roughly 70 mucous glands. The muscles surrounding the appendix compress it till a secretion comes out and lubricates the vocal folds
.
Diverticulum
A diverticulum is medical or biological term for an outpouching of a hollow structure in the body. Depending upon which layers of the structure are involved, they are described as being either true or false....
(membranous sac) which extends vertically from the ventricle of the larynx
Ventricle of the larynx
The ventricle of the larynx is a fusiform fossa, situated between the ventricular and vocal folds on either side, and extending nearly their entire length....
. It runs between the vestibular fold
Vestibular fold
The vestibular fold is one of two thick folds of mucous membrane, each enclosing a narrow band of fibrous tissue, the ventricular ligament, which is attached in front to the angle of the thyroid cartilage immediately below the attachment of the epiglottis, and behind to the antero-lateral surface...
, thyroarytenoid muscle
Thyroarytenoid muscle
The thyroarytenoid is a broad, thin muscle that lies parallel with and lateral to the vocal fold and that supports the wall of the ventricle and its appendix...
, and thyroid cartilage
Thyroid cartilage
The thyroid cartilage is the largest of the nine cartilages that make up the laryngeal skeleton, the cartilage structure in and around the trachea that contains the larynx....
, and is conical, bending slightly backward. It is covered in roughly 70 mucous glands. The muscles surrounding the appendix compress it till a secretion comes out and lubricates the vocal folds
Vocal folds
The vocal folds, also known commonly as vocal cords, are composed of twin infoldings of mucous membrane stretched horizontally across the larynx...
.