Face and Parotid Region Learning Objectives

Question 1

Identify the sinus cavities of the skull.

Answer 1

Frontal sinus
Ethmoid sinus
Maxillary sinus
Sphenoidal sinus (not visible from anterior view, posterior to frontal sinus)

Question 2

Name the bones that form the four walls of the orbit.

Answer 2

Roof:
Frontal bone
Lesser wing of sphenoid

Medial wall:
Ethmoid bone
Lacrimal bone

Floor:
Maxilla
Zygomatic bone

Lateral wall:
Greater wing of sphenoid bone
Zygomatic bone

Openings in walls of orbit:
Optic canal
Superior orbital fissure
Inferior orbital fissure