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Spinal Anatomy Summer 2015 > final occiput axial joint > Flashcards

Flashcards in final occiput axial joint Deck (9)
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1
Q

what is the embryonic derivative of the apical ligament of the dens or the apicodental ligament

A

the notochord

2
Q

what is the functin of the alar ligament

A

together they function to resist axial rotation

3
Q

what forms the cranial continuation of the posterior longitudinal ligament

A

the membrana tectoria or tectorial membrane

4
Q

what are the attachment sites for the superficial layer of the membrana tectoria or tectorial membrane

A

the posterior part of the inferior epiphyseal rim and vertebral body of C2 to the capsular ligament of the atlanto occipital joint and cranial dura of the posterior cranial fossa

5
Q

list in order the ligament in a midsagittal plane from the dura mater at the level of the medulla oblongata to the anterior bursa of the median atlanto axial joint

A

the membrana tectoria or tectorial membrane
the cruciate ligament
the capsular ligament of the posterior bursa of the median atlanto axial joint
the apical ligament of the dens or the apicodental ligament

6
Q

for the cervical spine below C2, what is the range of flexion extension

A

about 90 degrees or about 18 degrees per couple

7
Q

for the cervical spine below C2 what is the range of one side lateral bending

A

about 50 degrees or about 10 degrees per couple

8
Q

for the cervical spine below C2 what is the range of one side axial rotation

A

about 33 degrees or about 6 degrees per couple

9
Q

what ligament attaches to the anterior margin of the foramen magnum and the tip of the odontoid process of C2

A

the apical ligament of the dens or the apicodental ligament

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