Skull - Orbits

Question 1

Supraorbital margin formed by frontal bone

Answer 1

Superior boundary

Question 2

Infraorbital margin formed by maxilla and zygoma

Answer 2

Inferior boundary

Question 3

Formed by the zygomatic process of the frontal bone and the frontal process of zygomatic bone

Answer 3

Lateral boundary

Question 4

Formed by the frontal bone and the frontal process of the maxilla

Answer 4

Medial boundary

Question 5

-formed by the orbital plates of the frontal bone
-small contribution from the lesser wings of the sphenoid
-contains the optic foramen at the apex - transmits optic nerve

Answer 5

Roof structure of orbit

Question 6

-formed mainly by the orbital plate of the maxilla and zygomatic bone
-small contribution from the palatine bone (posteriorly)
-separated from the lateral wall by the inferior orbital fissure

Answer 6

Floor structure of orbit

Question 7

-formed mainly by the orbital plate of the ethmoid bone as well as the lacrimal bone and frontal process of maxilla

Answer 7

Medial wall structure of orbit

Question 8

-formed by the greater wing of the sphenoid and zygomatic bone

Answer 8

Lateral wall of orbit structure