AP/PA, Townes, SMV, Lateral, Water's

for the water’s view, which positioning line should be perpendicular to the IR?

a. OML

b. IOML

c. AML

d. MML

d. MML

how many degrees are between the OML and IOML?

a. 7

b. 5

c. 15

d. 10

a. 7

what is the CR entry point for the Towne’s view?

a. between the EAM

b. nasion

c. acanthion

d. 2.5 inches above the glabella

d. 2.5 inches above the glabella

for a PA skull projection, which positioning line should be perpendicular to the IR?

a. AML

b. OML

c. IOML

d. MML

b. OML

what positioning line must be perpendicular to the IR for a true lateral skull?

a. MML

b. OML

c. IPL

d. IOML

c. IPL

where does the CR exit in Water’s view?

a. glabella

b. acanthion

c. nasion

d. mid-orbits

b. acanthion

what is the proper tube angle for a towne’s (AP axial) skull projection using the OML?

a. 20 degrees cephalad

b. 30 degrees caudad

c. 37 degrees caudad

d. 15 degrees caudad

b. degrees caudad

which projection best shows both zygomatic arches in profile

a. water’s

b. SMV

c. AP skull

d. lateral

b. SMV

what anatomical landmark should be used to center the CR in a lateral skull projeciton?

a. glabella

b. tip of the nose

c. external occipital protuberance

d. 2 inches superior to the EAM

d. 2 inches superior to the EAM

where should the CR enter for an SMV view?

a. 1.5 inches inferior to the chin

b. at the jugular notch

c. midway between the EAM

d. at the glabella

a. 1.5 inches inferior to the chin