Eye

Question 1

Bones of the Orbit

Answer 1

1) Frontal
2) Ethmoid
3) Maxilla
4) Lacrimal
5) Zygomatic
6) Palatine
7) Sphenoid

Question 2

Where is the lacrimal fossa located

Answer 2

frontal bone of the orbit, located on the upper temporal side of the eye

Question 3

Lateral wall of the orbit

Answer 3

zygomatic and greater wing of sphenoid bones

Question 4

Medial wall of the orbit

Answer 4

orbital lamina of the ethmoid bone, lacrimal bone, frontal process of the maxilla

Medial walls are separated by the ethmoid and sphenoid sinuses

Question 5

Roof of the orbit

Answer 5

frontal bone with lacrimal fossa -> lacrimal sac

Question 6

Floor of the orbit

Answer 6

maxilla bone, contains infraorbital groove -> infraorbital nerve (branch of CN V, trigeminal)

Under the floor is the maxillary sinus

Question 7

Apex of the orbit and openings

Answer 7

formed by the sphenoid bone

1) Optic nerve canal: contains optic nerve, ophthalmic artery
2) Superior orbital fissure: CN III, IV, VI, V1, superior ophthalmic vein
3) Inferior orbital fissure: branches of maxillary nerve and vessels