C-spine

Question 1

Structures AP

Answer 1

Superior portion of C3 through T2
Include both lateral margins of neck

Question 2

CR and CP AP

Answer 2

CR: 15(supine)/20 (erect) Cephalad
CP: C4 midline

Question 3

No head tilt AP

Answer 3

Mandible angles on same transverse plane

Question 4

No shoulder tilt AP

Answer 4

Spices on same transverse plane

Question 5

BTP AP

Answer 5

Each vertebra SP is seen within its inferior IV disc space
Open IV joint space

Question 6

Correct chin extension AP

Answer 6

Occupies SI with symphysis menti of mandible

Question 7

No head rotation AP

Answer 7

C1-4
Mandible angles equidistant to vertebrae
Sp processes mid vertebrae and equidistant to pedicles

Question 8

No shoulder rotation AP

Answer 8

C5-T2
Eternal ends equidistant to vertebral bodies
SP mid vertebrae and equidistant to pedicles

Question 9

Structures dens

Answer 9

Base of skull to C2
Include transverse processes of C1

Question 10

CR and CP dens

Answer 10

CR: perp
Use angle if f/e cannot be achieved
CP: mid-line C1-2

Question 11

No head tilt dens

Answer 11

Transverse processes at same transverse level

Question 12

No rotation dens

Answer 12

Lateral masses of C1 equidistant from dens (head)
C2 SP midline (spine)

Question 13

Proper head f/e or BTP

Answer 13

Inferior margins of upper teeth and base of skull SI
Shadow of tongue not SI C1/C2

Question 14

Structures lat

Answer 14

Base of skull
All 7 c vert
C7/T1 joint space open including at least top 1/3 of T1
All St of neck
Clivus should be included

Question 15

CR and CP lat

Answer 15

CR: perp
CP: C4 on plane of EAM/ btwn ant-post margin

Question 17

No head and shoulder tilt LAt

Answer 17

Head: inferior cranial margins SI superior/inferior
Posterior arch of C1 SI
Mandibles rami SI sup/inf
Head and shoulders: z-joints SI sup/inf
Self SI of vertebral body margins=open intervertebral spaces

Question 18

No head and shoulder rotation Lat

Answer 18

Head and shoulder: post margins of vert bodies SI ant-post
Z-joints SI ant/post
Head: posterior mandible margins SI ant/ post

Question 19

Good head extension lat

Answer 19

C1-2 free of SI from occiput and mandible

Question 20

Structures oblq

Answer 20

All 7 C and T1
Ant-post ST

Question 21

CR and CP AP axial

Answer 21

CR: 15/20 Cephalad (supine/erect)
CP: midline at C4

Question 22

CR and CP PA axial

Answer 22

Cr: 20 Caudad
Cp: midline at C4

Question 23

Good BTP oblq

Answer 23

Open IV joint space and IV foramina

Question 24

Good head rotation oblq

Answer 24

Lat-posterior mandibular rami SI ant/post
C1-3 free of SI
Oblique: C1-3 are SI by mandible

Question 25

Good 45 shoulder rotation oblq

Answer 25

IVF open and clearly seen Anterior pedicles (opposite side) aligned to anterior VB

Question 26

No head tilt oblq

Answer 26

Inferior cranial vortices and mandibular rami slightly separated Atlas and its posterior arch open

Question 27

Good chin extension oblq

Answer 27

Spine not SI by cranium or rami