Is the pterygomaxillary fissure the same as the pterygopalatine fossa?
The pterygopalatine plates are separated laterally from the posterior surface of the body of the maxilla by the pterygomaxillary fissure. In older texts, the pterygomaxillary fissure is sometimes called the pterygopalatine fissure.
What is a pterygomaxillary fissure?
Medical Definition of pterygomaxillary fissure : a vertical gap between the lateral pterygoid plate of the pterygoid process and the maxilla that descends at right angles to the medial end of the inferior orbital fissure and gives passage to part of the maxillary artery and vein.
Is Sphenopalatine fossa and pterygopalatine fossa same?
Contents. The pterygopalatine fossa contains fat and the following neurovascular structures: pterygopalatine ganglion. maxillary artery (terminal portion), and its branches including the descending palatine artery.
What is pterygopalatine fossa?
In human anatomy, the pterygopalatine fossa (sphenopalatine fossa) is a fossa in the skull. A human skull contains two pterygopalatine fossae—one on the left side, and another on the right side….
| Pterygopalatine fossa | |
|---|---|
| TA2 | 429 |
| FMA | 75309 |
| Anatomical terms of bone |
Where is Pterygomaxillary fissure?
temporal fossa
It is located in the medial aspect of the temporal fossa and is formed by the divergence of the maxilla from the pterygoid process of the sphenoid bone. It connects the infratemporal fossa with the pterygopalatine fossa.
What bones make up the Pterygomaxillary fissure?
It is located in the medial aspect of the temporal fossa and is formed by the divergence of the maxilla from the pterygoid process of the sphenoid bone. It connects the infratemporal fossa with the pterygopalatine fossa.
What passes through Pterygomaxillary fissure?
The pterygomaxillary fissure transmits the posterior superior alveolar nerve, a branch of maxillary division of the trigeminal nerve from the pterygopalatine fossa to the infratemporal fossa. Terminal branches of the maxillary artery also enter the fissure.
What nerves pass through pterygopalatine fossa?
In the pterygopalatine fossa, it gives origin to several branches: the middle meningeal nerve and the zygomatic nerve, which contains both sensory fibers to the skin of the zygomatic region, postganglionic parasympathetic fibers to the lacrimal gland, and three or four thin sphenopalatine nerves that connect it to the …
What is Pterygopalatine fossa?
The pterygopalatine fossa (PPF) is a cone-shaped depression deep to the infratemporal fossa and posterior to the maxilla on both sides of the skull. The fossa is located between the pterygoid process and the maxillary tuberosity, close to the orbital apex.
What passes through pterygopalatine fissure?
Contents. The pterygomaxillary fissure transmits the posterior superior alveolar nerve, a branch of maxillary division of the trigeminal nerve from the pterygopalatine fossa to the infratemporal fossa. Terminal branches of the maxillary artery also enter the fissure.
Where is the fissure of the pterygopalatine fossa located?
The pterygomaxillary fissure is located between the anterior and posterior wall of the pterygopalatine fossa. It communicates with the infratemporal fossa and transmits the posterior superior alveolar nerve and the maxillary artery.
What are the contents of the pterygomaxillary fissure?
Contents. The pterygomaxillary fissure transmits the posterior superior alveolar nerve, a branch of maxillary division of the trigeminal nerve from the pterygopalatine fossa to the infratemporal fossa. Terminal branches of the maxillary artery also enter the fissure.
Where does the maxillary nerve enter the pterygopalatine fossa?
Pterygomaxillary Fissure. Posterior superior alveolar nerve – a branch of the maxillary nerve. It exits through the fissure into the infratemporal fossa, where it goes on to supply the maxillary molars. Terminal part of the maxillary artery – enters the pterygopalatine fossa via the fissure.
Where are the foramen rotundum and the pterygoid canal located?
These two canals, along with the foramen rotundum, are the three openings in the posterior wall of the pterygopalatine fossa: Pterygoid canal – runs from the middle cranial fossa and through the medial pterygoid plate. It carries the nerve, artery and vein of the pterygoid canal.