Laryngeal ventricle

Laryngeal Ventricle

The Laryngeal Ventricle or Ventriculus laryngis is a midline, sagittal section of the larynx, located between the vocal folds and the vestibular fold. It is an important anatomical structure in the human respiratory system and plays a significant role in phonation.

Anatomy

The laryngeal ventricle is a fusiform fossa, extending from the anterior commissure to the arytenoid cartilage. It is bounded superiorly by the vestibular fold, inferiorly by the vocal fold, and laterally by the thyroid cartilage and arytenoid cartilage. The ventricle is lined with respiratory epithelium, which secretes mucus to lubricate the vocal folds.

Function

The primary function of the laryngeal ventricle is to produce mucus that lubricates the vocal and vestibular folds. This lubrication is essential for the proper functioning of the larynx, particularly during phonation. The ventricle also plays a role in modifying the resonance characteristics of the larynx, contributing to the individual's unique voice quality.

Clinical Significance

Abnormalities or pathologies of the laryngeal ventricle can lead to various clinical conditions. For instance, laryngocele, a condition characterized by the abnormal dilation of the laryngeal ventricle, can cause voice changes, cough, and difficulty breathing. Laryngeal cancer can also involve the laryngeal ventricle, with symptoms including hoarseness, sore throat, and difficulty swallowing.

See Also

• Larynx
• Vocal folds
• Vestibular fold
• Respiratory system
• Phonation