Infratemporal region

Question 1

Temporal fossa bounded by

Answer 1

Inferior Temporal line
Infratemporal crest of the greater wing of the sphenoid bone

Question 2

Temporal fossa contents

Answer 2

Temporalis muscle
Blood vessels
Nerves

Question 3

Infratemporal fossa boundaries..

Answer 3

Laterally- mandibular ramus and zygomatic arch.
Medially- lateral pterygoid plate
Superiorly- greater wing of the sphenoid bone.
Anteriorly- Posterior surface of the maxilla, including maxillary tuberosity.
There are no boundaries inferiorly or posteriorly.

Question 4

Infratemporal fossa muscles

Answer 4

Inferior part of the temporalis muscle.
Lateral and medial pterygoid muscles.

Question 5

Infratemporal fossa blood vessels

Answer 5

Maxillary artery and branches- Inferior alveolar artery, Posterior superior alveolar artery.
Pterygoid plexus of veins.

Question 6

Pterygoid venus plexus has what function

Answer 6

All the mandibular and maxillary teeth drain into the pterygoid venus plexus

Question 7

The pterygoid venus plexus has communications with the __________ through the _______

Answer 7

.. the cavernous sinus through the emissary veins.

Question 8

Pterygoid venus plexus communications

Answer 8

Facial vein
Cavernous sinus
Inferior Ophthalmic vein
Pharyngeal plexus

Question 9

Infratemporal region nerves

Answer 9

Mandibular nerve
Otic ganglion
Chonda Tympani Nerve (branch of facial nerve)

Question 10

Infratemporal fossa communications

Answer 10

Anterior- Orbit
Superior- Temporal fossa & cranial cavity
Inferior- Pterygomandibular space
Medial- Pterygopalatine fossa
Posterior- Parapharyngeal and retroparapharyngeal space

Question 11

Infratemporal fossa nerves

Answer 11

Mandibular nerves
-Inferior alveolar nerve
- Lingual nerve
- Long buccal nerve
-Auriculotemporal nerve
Chorda tympani nerve
Glossopharyngeal nerve
Otic nerve