EXERCISES, LESSON 5, SECTION II
MATCHING: For exercises 1 through 3
, match the position with the anatomical
structure(s) that the position demonstrates. Enter the letter that corresponds to your
choice in the space provided. (There is an extra alternative that will not be selected.)
a. Maxillary sinuses and nasal fossae.
b. Frontal sinuses and anterior ethmoid sinuses.
c. Sphenoid sinuses, superimposed frontal
sinuses, ethmoid sinuses, maxillary sinuses,
sella turcica, orbital roofs.
d. Petrous ridge in profile, bony labyrinth,
tympanic cavity, internal auditory canal, and
mastooid air cell.
MULTIPLE- CHOICE. For exercises 4 through 7, select the ONE word or phrase that
BEST completes the statement or BEST answers the question.
The technical factors for the three sinus projections taught in this lesson are:
a. 8 x 10 LW NB.
b. 8 x 10 LW B.
10 x 12 CW B.
d. 10 x 12 LW B
The part centered for the parietoacanthial sinus (Waters method) is:
a. Nasion to the center of the film
b. Acanthion to the center of the cassette.
Midway between the outer canthus and the EAM to the center of the cassette.
d. Glabella to the center of the cassette.