The pyriform sinus (also piriform recess, piriform sinus, piriform fossa, or smuggler's fossa) is a small recess on either side of the laryngeal inlet. It is bounded medially by the aryepiglottic fold, and …

Jul 12, 2025 · The pyriform sinus is a small, pear-shaped cavity located on each side of your throat, just above your voice box. Also called the pyriform fossa, these paired structures are part of your …

Sep 30, 2025 · The pyriform sinus (also spelled piriform sinus and also known as the pyriform recess, pyriform fossa, and smuggler's fossa) is the pear-shaped subsite of the hypopharynx located …

Aug 10, 2025 · The pyriform sinus, also known as the piriform recess or piriform fossa, is a pear-shaped anatomical space in the throat that plays a part in the complex process of swallowing. This structure …

Pyriform sinus refers to the pear-shaped fossa (Latin for “trench”) just lateral to the laryngeal entrance. Its medial surface is the aryepiglottic cord; laterally it is bounded by the thyroid cartilage, and …

The piriform sinuses are at the lateral aspects of the hypopharynx, from the pharyngoepiglottic ligament tapering to an apex that is roughly at the level of the true vocal folds.

The piriform sinus, also termed recessus, or fossa, pyrifomis, is occasionally described as being part of the larynx, but, since it lies outside of that organ, is, strictly speaking, part of the hypopharynx.

Oct 27, 2025 · …the mucous lining of the piriform sinus of each side. These pear-shaped recesses mark the beginning of the entrance of the pharyngeal foodway into the esophagus.

The meaning of PIRIFORM SINUS is a small cavity or pocket between the lateral walls of the pharynx on each side and the upper part of the larynx.

On either side of the laryngeal orifice is a recess, termed the sinus piriformis, which is bounded medially by the aryepiglottic fold, laterally by the thyroid cartilage and hyothyroid membrane.