Osteology of IT fossa

Question 1

what structure create the temporal fossa

Answer 1

• superior and inferior temporal lines
• zygomatic arch –> temporal process of zygomatic bone, zygomatic process of temporal bone

Question 2

what structures make up the temporomandibular joint

Answer 2

articulation between mandibular fossa (temporal bone) and head of the condyloid process of mandible

Question 3

action/movements of the temporomandibular joint

Answer 3

• movement of the mouth
• elevation, depression, protrusion, retrusion, lateral movements

Question 4

location of temporal fossa

Answer 4

• depressed side on the skull
• occupied primarily by upper portion of temporalis muscle
• superior to infratemporal fossa

Question 5

location of infratemporal fossa

Answer 5

the space between the ramus of mandible, lateral pterygoid plate, maxilla, inferior surface of greater wing of sphenoid, mastoid and styloid process of temporal boen

Question 6

what make up the borders of the infratemporal fossa

Answer 6

Anterior border –> posterior surface of maxilla

posterior border –> temporal bone, and mastoid and styloid processes of temporal bone

medial border –> lateral pterygoid plate of sphenoid

lateral border –> ramus and coronoid process of the mandible

superior border (Roof) –> part of greater wing of sphenoid and part of squamous part of the temporal bone