Atypical Cervical Vertebrae C2/axis Flashcards Preview

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Flashcards in Atypical Cervical Vertebrae C2/axis Deck (26)
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1

names given to C2

axis or epistropheus

2

unique vertebral body modification characteristic of C2

dens or odontoid process

3

# of joint surfaces present on the DENS

5

4

joint surfaces on dens

facet for fovea dentis
groove for transverse atlantal ligament
attachment sites for alar ligaments
attachement site for the apical-dental ligament

5

joint classifications represented at the dens

fibrous (amphiarthrosis) syndesmosis joint
synovial pivot (diarthrosis trochoid) joint

6

name given to the odontoid process when the FACET for fovea dentist lies ABOVE the groove for the transverse atlantal ligament and the ATTACHMENT sites for the apical-dental ligament and alar ligaments appear to be directed POSTERIOR

lordotic dens

7

name given to the odontoid process when the FACET for the fovea dentist lies BELOW the groove for the transverse atlantal ligament and the ATTACHMENT sites for the apical-dental and alar ligaments appear to be directed ANTERIOR

kyphotic dens

8

joint sufaces present at the inferior part of the vertebral body of C2

anterior lip, posterior lip, right and left lateral grooves and cancellous bone

9

# of joints formed by the inferior part of the vertebral body of C2

5

10

joint classifications present at the inferior part of the vertebral body of C2

fibrous (amphiarthrosis) syndesmosis
modified synovial saddle (diarthorsis sellar)
cartilaginous (amphiarthrosis) symphysis

11

ligaments that attach posteriorly to the inferior epiphyseal rim of C2

membrana tectoria and posterior longitudinal ligament

12

ligament that will represent the cranial continuation of the posterior longitudinal ligament

membrana tectoria

13

ligament forms the anterior boundary for the spinal canal ABOVE C2

membrana tectoria

14

ligament forms the anterior boundary for the spinal canal BELOW C2

posterior longitudinal ligament

15

lies on the superior surface of the pedicle of C2

superor articular process

16

location of superior vertebral notch of C2

lamina-pedicle junction

17

attaches to the lamina of C2

obliquus capitis inferior muscle
posterior atlanto-axial ligament
ligamentum flavum

18

appearance of superior articular facets of C2

asymmetrical and slightly convex

19

facet orientation of superior articular facet of C2

BUL

20

orientation of the inferior articular facets of C2

FoLD

21

what muscle attaches to the articular processes of C2

longissimus cervicis

22

osseous parts of the typical cervical transverse process present at C2

costal element
posterior tubercle
true transverse process

23

gender variation for the transverse diameter of C2

M: 57mm
F: about 50 mm

24

muscles that attach to the transverse process of C2

levator scapulae
middle scalene
splenius cervicis
longissimus cervicis
intertransversarii

25

characteristic appearance of C2 spinous process in humans

bifid

26

muscles that attach to spinous process of C2

rectus capitis posterior major
obliquus capitis inferior
spinalis cervicis
semispinalis cervicis
multifidis
rotators
interspinalis muscles