Piriform sinus

Piriform sinus

Infobox Anatomy
Name = PAGENAME
Latin = recessus piriformis, sinus piriformis
GraySubject = 244
GrayPage = 1142


Caption = Larynx


Caption2 =
Precursor =
System =
Artery =
Vein =
Nerve =
Lymph =
MeshName =
MeshNumber =
DorlandsPre = r_05
DorlandsSuf = 12696766
On either side of the laryngeal orifice is a recess, termed the piriform sinus (also piriform recess, pyriform sinus, or piriform fossa), which is bounded medially by the aryepiglottic fold, laterally by the thyroid cartilage and hyothyroid membrane.

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

Clinical significance

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.Moreover it is place for lodgement of precarious drugs during smuggling. Accidently ingested foreign material by infants also lodges in piriform fossa and is retrieved from there

External links

* - "Pharynx: The Laryngopharynx"


Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • piriform sinus — recessus piriformis …   Medical dictionary

  • Piriform — means pear shaped, and may refer to:Anatomy*Piriform muscle **Piriformis syndrome *Piriform cortex *Piriform sinus *Piriform fossaOther*Piriform (company) …   Wikipedia

  • piriform recess — n a small cavity or pocket between the lateral walls of the pharynx on each side and the upper part of the larynx called also piriform fossa, piriform sinus …   Medical dictionary

  • sinus — 1. [TA] A channel for the passage of blood or lymph, without the coats of an ordinary vessel; e.g., blood passages in the gravid uterus or those in the cerebral meninges. 2. [TA] A cavity or …   Medical dictionary

  • fossa — A depression usually more or less longitudinal in shape below the level of the surface of a part. [L. a trench or ditch] acetabular f. [TA] a depressed area in the floor of the acetabulum superior to the …   Medical dictionary

  • List of anatomical topics — This page aims to list articles related to anatomy. This list is not necessarily complete or up to date if you see an article that should be here but isn t (or one that shouldn t be here but is), please update the page accordingly. NOTOC A… …   Wikipedia

  • Human pharynx — pharynx Head and neck. Pharynx …   Wikipedia

  • Nasopharynx — Front of nasal part of pharynx, as seen with the laryngoscope. Latin …   Wikipedia

  • Oropharyngeal cancer — Head and neck. Pharynx …   Wikipedia

  • Mucous membrane — Layers: serosa longitudinal muscle myenteric plexus circular muscle submucosal plexus submucosal mucosal …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”