1 / 14

PTERYGOPALATINE FOSSA

PTERYGOPALATINE FOSSA. By.pullanna . Dept.of anatomy,ymc. The Pterygopalatine fossa. Inverted 'tear-drop' shaped space Between bones on the lateral side of the skull Immediately posterior to the maxilla Small in size. Sphenoid bone.

jsproul
Télécharger la présentation

PTERYGOPALATINE FOSSA

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. PTERYGOPALATINE FOSSA By.pullanna . Dept.of anatomy,ymc.

  2. The Pterygopalatine fossa • Inverted 'tear-drop' shaped space • Between bones on the lateral side of the skull • Immediately posterior to the maxilla • Small in size

  3. Sphenoid bone • The part of bone that contributes to the formation of the fossa is the anterosuperior surface of the pterygoid process • Opening onto this surface are two large foramina: • 1.The Foramen rotundum • 2.Pterygoid canal

  4. Foramen rotundum • Lateral and superior foramen • Communicates posteriorly with the middle cranial fossa • The maxillary nerve [V2] passes through it

  5. Contents • 1. The maxillary nerve [V2] • 2. Terminal part of the maxillary artery • 3. Nerve of the pterygoid canal • 4. The pterygopalatine ganglion • 5. Veins and lymphatics also pass through the pterygopalatine fossa.

  6. Pterygopalatine ganglion • Largest of the four parasympathetic ganglia in the head • Formed by the cell bodies neurons associated with: • 1. Preganglionic parasympathetic fibers of the facial nerve carried by the greater petrosal nerve and the nerve of the pterygoid canal. • 2.Sensory and ganglionic branches of the maxillary nerve • 3.Postganglionic sympathetic fibers (deep petrosal)

  7. Motor or parasympathetic root: • Secretomotor fibers to the lacrimal gland. • Glands of the nose. • Palate. • Nasopharynx. • Para nasal sinuses. Sympathetic root:provide vasomotor supply • The mucous membrane of the nose. • Palate. • Pharynx.

  8. Branches • Orbital inferior orbital fissur • Palatine • Nasal sphenopalatine foramen • Pharyngeal palato vaginal canal

  9. Thank you

More Related