Facial Bone Anatomy

What is included in the collimation for frontal views in facial bone imaging?

• Only the mandible

• Lateral aspect of skull; mid-forehead to below mandible

• Only the nasal bones

• Only the EAM

List the routine views for facial bone imaging as mentioned in the student outline.

• PA Axial Projection/Exaggerated Caldwell Method, Parietoacanthial Projection/Waters Method, Lateral Projection (of affected side), Submentovertical Projection/SMV (only non-trauma)

• AP Axial Projection/Towne Method, Parietoacanthial Projection/Waters Method, Lateral Projection (both sides), Submentovertical Projection/SMV (trauma and non-trauma)

• PA Axial Projection/Exaggerated Caldwell Method, Parietoacanthial Projection/Waters Method, Lateral Projection (both sides), AP Axial Projection/Towne Method

• PA Axial Projection/Exaggerated Caldwell Method, Parietoacanthial Projection/Waters Method, Lateral Projection (of affected side), AP Axial Projection/Towne Method

Which anatomical structures are demonstrated in the Parietoacanthial (Waters) projection?

• All facial bones, orbits, zygomatic arches, mandible, maxillary sinus, vomer/perpendicular plate of ethmoid, petrous ridge

• Only the mandible and zygoma

• Only the frontal bone

• Only the orbits and maxillary sinus

Which anatomical structure is NOT demonstrated in the Parietoacanthial (Waters) projection?

• Mandible

• Maxillary sinus

• Femur

• Zygomatic arches

In the Parietoacanthial (Waters) projection, the petrous ridges should be projected _________.

• below floor of maxillary antra

• at the level of the orbits

• above the maxillary sinuses

• in the middle of the maxillary antra

Which anatomical structures are demonstrated in the Lateral projection of the facial bones?

• Only the mandible

• All facial bones, orbits, zygomatic arches, mandible, maxillary sinus, vomer/perpendicular plate of ethmoid, petrous ridge

• Only the frontal bone

• Only the orbits and maxillary sinus

Which anatomical structures are demonstrated in the Ex. Caldwell?

• All facial bones, superior orbital fissures, greater & lesser wings of sphenoid, petrous ridge, frontal sinus & frontal bone, orbits, perpendicular plate of ethmoid, mandible, zygoma

• Only the mandible and zygoma

• Only the frontal bone

• Only the orbits and maxillary sinus

Which of the following is NOT demonstrated in the anatomy for the submentovertical/SMV projection?

• Mandible

• Hard palate

• Zygomatic arches

• Femur

The maxillae form the anterior _______ of the hard palate.

• 3/4ths

• 1/2

• 1/4th

• 2/3rds

Which bone is referred to as the cheekbone?

• Nasal bone

• Maxilla

• Zygoma

• Mandible