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 laterally by the thyroid cartilage and thyrohyoid …

2024年2月21日 · 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 posterolaterally to either side of the laryngeal opening.

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 posteriorly by the low posterior pharyngeal wall.

2025年1月17日 · The piriform aperture, also known as the piriform recess or piriform sinus, is a small, pear-shaped opening located in the lateral wall of the nasal cavity. It is an important structure in the anatomy of the head and neck, and has a number of important functions and clinical significance.[3]

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 laterally by the thyroid cartilage and thyrohyoid membrane. The fossae are involved in speech. Etymology

The piriform recesses are shallow depressions in the laryngopharynx. They sit on both sides of the laryngeal inlet. The piriform recess sits lateral to the aryepiglottic folds and medial to the thyroid cartilage and thyrohyoid membrane.

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.

Two types of sinus, the blood-filled and the air-filled sinuses, are discussed in this article. The cranial venous sinuses are spaces between the layers of dura mater, which covers the brain, and are lined with endothelium similar to that lining veins.

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.

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.