QuestionSBA
QuestionChoice
Correct. The odontoid process (or dens) is the superior bony extension from the vertebral body of C2. It forms a synovial pivot joint with the anterior arch of C1, known as the atlanto-axial joint, which allows for head rotation. The odontoid process is stabilised in joint by transverse ligaments, the apical ligament (a remnant of the notochord connecting the apex of the odontoid process to the skull), and the alar ligament (connects apex of odontoid process to C1).
10009085
a
Odontoid process of C2
QuestionChoice
Incorrect. The spinal cord is found in the vertebral column, posterior to the vertebral bodies.
10009086
b
Spinal cord
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Incorrect. The C1 vertebra lacks a spinous process. Instead, it has a posterior tubercle where the posterior arches meet.
10009089
e
Spinous process of C1
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Incorrect. The C1 vertebra has no anatomical body. Instead, the articular facet on the inside of anterior arch articulates with the odontoid process of C2.
10009088
d
Body of C1
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Incorrect. The intervertebral discs are found between adjacent vertebral bodies, forming secondary cartilaginous (or symphysis) joints. The outer ring of each disc is called the annulus fibrosis, whereas the inner core is called the nucleus pulposus.
10009087
c
Intervertebral disc
Concept
Chapter
2693
5306
The Cervical Spine
Topic
201
Head and neck anatomy
14364
Picture
1724
19 - The Cervical Spine (odontoid peg).png
images/q57afb4r1682950602300.jpg
images/q57afb4r1682950602300_256.jpg
images/q57afb4r1682950602300_512.jpg
YxgKDQLzmYd3yGeYh5l3lwyJpJA3
Topic
201
Head and neck anatomy
Identify the labelled structure.

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a