Pyriform sinus
Pyriform sinus | |
---|---|
hypopharynx | |
Details | |
Identifiers | |
Latin | recessus piriformis, sinus piriformis |
MeSH | D056144 |
TA98 | A05.3.01.024 |
TA2 | 2880 |
FMA | 55067 |
Anatomical terminology] |
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.[1] The fossae are involved in speech.
Etymology
The term "pyriform," which means "pear-shaped," is also sometimes spelled "piriform".[citation needed]
The term smuggler's fossa comes from its use for smuggling of small items.[2]
Structure
Relations
Deep to the mucous membrane of the pyriform fossa lie the
Clinical significance
This sinus is a common place for food particles to become trapped; if foreign material becomes lodged in the piriform fossa of an infant, it may be retrieved nonsurgically. If the area is injured (e.g., by a fish bone), it can give the sensation of food stuck in the subject's throat.[2]
Remnants of the
References
This article incorporates text in the public domain from page 1142 of the 20th edition of Gray's Anatomy (1918)
- OCLC 1201341621.)
{{cite book}}
: CS1 maint: location missing publisher (link - ^ ISBN 978-81-312-3627-7.
- ISBN 978-0-7817-6274-8
- ^ AJCC Cancer Staging Handbook: From the AJCC Cancer Staging Manual, Sixth Edition. Ed. Frederick L. Greene, M.D. page 48.
- ISBN 978-0-323-44314-2.
- ISBN 978-0-7817-4707-3.
- ISBN 978-0-7817-3371-7.
External links
- Anatomy photo:31:17-0105 at the SUNY Downstate Medical Center - "Pharynx: The Laryngopharynx"