Where Is Epiglottic Petiole?

The root or petiole of the epiglottis is inside the upper part of the thyroid cartilage just above the anterior insertion of the vocal cords. During swallowing, the epiglottis bends backward to cover the entrance of the larynx, helping to divert food into the esophagus.

What ligament opens the epiglottis?

The thyroepiglottic ligament connects the thyroid ligament to the epiglottis.

Is the epiglottis vestigial?

The epiglottis is considered to be vestigial by many authorities. Composed primarily of fibroelastic cartilage, the epiglottis does not ossify and maintains some flexibility throughout life. It is shaped like a leaf or a tear and is found between the larynx and the base of the tongue (see Fig. 1-7).