Pterygopalatine Fossa

0
418
pterygopalatine fossa

The pterygopalatine fossa is a pyramidal space between the pterygoid procedure of sphenoid behind and the opposite plate of Palatine in front arranged profoundly underneath the pinnacle of the circle. The back of maxilla replaces the palatine bone as the front limit of the passage of the fossa-the pterygomaxillary crevice all the more along the side.

The pterygopalatine fossa is a reciprocal, cone-formed misery expanding profound from the infratemporal fossa the distance to the nasal depression by means of the sphenopalatine foramen.

 

pterygopalatine fossa

 

It is situated between the maxilla, sphenoid and palatine bones, and speaks with different areas of the skull and facial skeleton by means of a few waterways and foramina. Its little volume joined with the various structures that go through makes this a mind-boggling locale for life systems understudies.

This article will examine the pterygopalatine fossa, and consider the structures required by their individual foramina.

(Related: popliteal fossa)

 

Bounds

Front: a Perpendicular plate of the Palatine and back surface of the maxilla (superomedial part).

Back: Pterygoid process and bordering some portion of the foremost surface of the higher wing of the sphenoid.

Average: the Upper piece of the opposite plate of palatineorbital and sphenoidal procedure of the Palatine.

Horizontal: The fossa opens into the sanctuary fossa through pterygomaxillary gap.

Unrivaled: Under the surface of the body of the sphenoid and orbital procedure of the Palatine. The parallel piece of the rooftop is open and here fossa opens into the circle by means of a mediocre orbital gap.

Second rate: Pyramidal procedure of the palatine bone in the point between the maxilla and the pterygoid procedure.

 

Correspondences

The PPF is an essential pathway for the spread of neoplastic and irresistible procedures:

Medially: speaks with the nasal pit through the sphenopalatine foramen, which transmits the sphenopalatine supply route, the nasopalatine nerve, and the back prevalent nasal nerves

Along the side: speaks with the masticator space (or infratemporal fossa) by means of the pterygomaxillary crevice

Anteriorly: speaks with the circle by means of the second rate orbital crevice (superiorly)

Posteriorly and superiorly: speaks with the Meckel give in and huge sinus (of the center cranial fossa) by means of the foramen rotundum

Posteriorly and poorly: speaks with the center cranial fossa by means of the vidian waterway, which transmits the Vidian nerve

Posteriorly and medially: the palatovaginal trench transmits the pharyngeal nerve and the pharyngeal part of the maxillary supply route to the nasopharynx.

Poorly: speaks with the sense of taste by means of the more prominent and lesser palatine waterways (regularly these trenches emerge from the one channel, alluded to as either the more noteworthy palatine channel or the pterygopalatine channel)

(Related: Femoral Nerve)

 

The additions are the essential substance of the pterygopalatine fossa:

  • Maxillary nerve.
  • Pterygopalatine ganglion.
  • Third piece of the maxillary supply route.

 

MAXILLARY NERVE

The maxillary nerve, the following segment (V2) of the trigeminal nerve is just tangible. It shows up from the arched foremost fringe of the trigeminal ganglion, penetrates the trigeminal sinkhole of dura to achieve the lower some portion of the sidelong mass of the enormous sinus. The nerve leaves the center cranial fossa by means of foramen rotundum to get to the pterygopalatine fossa.

(Related: cubital fossa)

LEAVE A REPLY

Please enter your comment!
Please enter your name here