Piriform sinus

Piriform sinus
Larynx
Latin	recessus piriformis, sinus piriformis
Gray's	subject #244 1142
Dorlands/Elsevier	r_05/12696766

On either side of the laryngeal orifice is a recess, termed the piriform sinus (also piriform recess or piriform fossa), which is bounded medially by the aryepiglottic fold, laterally by the thyroid cartilage and hyothyroid membrane. It is a common place where food can be trapped or if injured (eg., by a fish bone), can give the sensation of food stuck in the throat.

The term "piriform" is also sometimes spelled "pyriform" (as in the diagram on this page.)

External links

• SUNY Labs 31:17-0105 - "Pharynx: The Laryngopharynx"

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.