Life

What is the significance of the infratemporal fossa?

What is the significance of the infratemporal fossa?

Nerves coursing through and around the infratemporal fossa are responsible for providing a vast majority of sensory and motor function to the lower face and other important structures such as the dura mater.

Which remains open into infratemporal fossa?

Anterior to the middle meningeal artery and CN V3, following the plane of the middle fossa floor and the horizontal portion of the internal carotid artery, the infratemporal fossa gives access to the cavernous sinus, sphenoid sinus, and nasopharynx (seeFig. 175.11).

Is infratemporal fossa and pterygopalatine fossa same?

Each fossa is a cone-shaped paired depression deep to the infratemporal fossa and posterior to the maxilla on each side of the skull, located between the pterygoid process and the maxillary tuberosity close to the apex of the orbit….

Pterygopalatine fossa
Latin fossa pterygopalatina
MeSH D056739
TA98 A02.1.00.025
TA2 429

Where is infratemporal?

The infratemporal fossa is a complex space of the face that lies posterolateral to the maxillary sinus and many important nerves and vessels traverse it. It lies below the skull base, between the pharyngeal sidewall and ramus of the mandible.

What nerve passes the infratemporal fossa?

mandibular nerve
The mandibular nerve enters the infratemporal fossa and passes through the foramen ovale in the sphenoid bone, and divides at that point into a smaller anterior and a larger posterior trunk.

What are bones of each wall of infratemporal fossa?

The infratemporal fossa is an irregularly shaped cavity that is a part of the skull. It is situated below and medial to the zygomatic arch. It is not fully enclosed by bone in all directions….

Infratemporal fossa
FMA 75308
Anatomical terminology

What is the infratemporal fossa?

The infratemporal fossa is a complex space of the face that lies posterolateral to the maxillary sinus and many important nerves and vessels traverse it. It lies below the skull base, between the pharyngeal sidewall and ramus of the mandible.

How does the fossa communicate with the temporal fossa?

The fossa is actually open to the neck posteroinferiorly and in doing so has no true anatomical floor. The fossa communicates with the temporal fossa via the space deep to the zygomatic arch, with the pterygopalatine fossa via the pterygomaxillary fissure, and with the middle cranial fossa via the foraminae ovale and spinosum.

What is the anteromedial fossa?

The anteromedial part of the fossa is referred to as the post zygomatic space which lies directly behind the maxilla and malar bone. It communicates with the temporal fossa through the gap between the zygomatic arch and the side of the skull and with the pterygopalatinefossa through the pterygomaxillary fissure.