temporal 2

Question 1

PP of Mayer

Answer 1

45 degrees, IOML parallel to transverse axis of IR

Question 2

CR of Mayer

Answer 2

45 caudad

Question 3

RP of Mayer

Answer 3

exit the EAM closest to IR

Question 4

SS: axiolateral oblique projection of the petrosa in the direction of its long axis demonstrates the EAM, tympanic cavity and ossicles, epitympanic recess, aditus, and mastoid antrum closest to the IR

Answer 4

Mayer

Question 5

CR of Henschen

Answer 5

15 caudad

Question 6

CR of Schuller

Answer 6

25 caudad

Question 7

Lysholm

Answer 7

35 caudad

Question 8

RP of Henschen, Schuller, Lysholm

Answer 8

directed to EAM

Question 9

PP of Henschen, Schuller, Lysholm

Answer 9

head in lateral

Question 10

SS: petrosas projected above the
base of the skull. It demonstrates the internal acoustic canals, arcuate eminences, labyrinths, mastoid antrums, and middle ears. The dorsum sellae is seen within the foramen magnum

Answer 10

Towne

Question 11

PP of Cahoon

Answer 11

forehead and nose on grid
OML is perpendicular

Question 12

CR of Cahoon

Answer 12

25 cephalad

Question 13

RP of Cahoon

Answer 13

nasion

Question 14

SS: Styloid processes of the temporal bones projected within or just above the maxillary sinuses.

Answer 14

Cahoon

Question 15

SS of Henschen

Answer 15

tumors of the acoustic nerve

Question 16

SS of Schuller

Answer 16

pneumatic structure of the mastoid process

Question 17

SS of Lysholm

Answer 17

mastoid cells, antrum, tegmen tympani, labyrinth, and the carotid canal

Question 18

PP of Miller

Answer 18

MSP 45° away
Open mouth as wide as possible

Question 19

CR of Miller

Answer 19

12 caudad

Question 20

RP of Miller

Answer 20

1 inch anterior to, and ½ inferior to the EAM on the side farthest from the IR

Question 21

Hypoglossal canal inferior to petrous bone

Answer 21

Miller

Question 22

CR Towne

Answer 22

30-37 caudad

Question 23

RP Towne

Answer 23

2.5 inches above Glabella