X-Rays

Front 1

A

Back 1

lateral masses of theatlas

Front 2

C

Back 2

crista galli

Front 3

E

Back 3

perpendicular plate of the ethmoid

Front 4

D

Back 4

dens

Front 5

F

Back 5

frontal sinus

Front 6

MN

Back 6

mandible

Front 7

S

Back 7

lesser wing of the sphenoid

Front 8

Sr

Back 8

superior orbital fissure

Front 9

T

Back 9

superior surface of the petrous part of the temporal bone

Front 10

V

Back 10

vomer

Front 11

I

Back 11

inferior and middle conchae

Front 12

M

Back 12

maxillary sinus

Front 13

A

Back 13

arch of the atlas

Front 14

M

Back 14

maxillary sinus

Front 15

N

Back 15

nasopharynx

Front 16

S

Back 16

sphenoidal sinus

Front 17

E

Back 17

ethmoidal cells

Front 18

H

Back 18

hypophyseal fossa

Front 19

T

Back 19

temporal bone

Front 20

L

Back 20

floor of the anterior cranial fossa appears as two lines

Front 21

Mc

Back 21

mastoid cells

Front 22

Mn

Back 22

grooves for the branches of the middle meningeal vessels

Front 23

P

Back 23

internal occipital protuberance (P )