Nasal bones test FINAL

Which positioning rule applies to the parietoacanthial projection?

The MML is approximately perpendicular to the IR

Which positioning rules apply to the lateral nasal bones position?

• The midsagittal plane is parallel to the IR

• The IP line is perpendicular to the IR

• The IOML id parallel to the transverse axis of the IR

On the parietoacanthial projection, where should the CR exit?

Acanthion

On the lateral nasal bones view, where should the CR enter?

1/2” distal to the nasion

On the lateral nasal bones view, the CR should be directed _______ to the ______ of the nose

Perpendicular, bridge

Which nasal bones view/projection is used to demonstrate the nasal septum?

• Parietoacanthial

• Waters

Which nasal bones view/projection is used to demonstrate the nasal bones?

Lateral

Which are pertinent evaluation criteria for a lateral view of the nasal bones?

• no rotation of the nasal bones or soft tissue of the nose

• Complete inclusion of the frontonasal suture, anterior nasal spine, and soft tissue of the nose

Which are pertinent evaluation criteria for the parietoacanthial image of the nasal bones exam?

• the petrous ridges should lie beneath the floor of the maxillary sinuses

• No rotation should be present