Cervical Anatomy Flashcards
upper cervical spine
Joints between the occiput, atlas and axis
craniovertebral joints
C1 C2 are atypical
C3 is transitional segment
From C3 downwards the facet joints are
inclined in a plane slightly anterior
Lateral masses of the C1 contain
Superior and inferior articulating facets that are concave
Lower cervical spine
C3 to C7
Small vertebra body that is wider in the lateral dimension
uncinate processes located on superior surface of the vertebral body
Forms joints of Luschla
joints of luschka
uncovertebral joints
Only found in the cervical spine C3 to C7
Articulates with the inferior surfaces of the body above
limit sidebending
protecting the cervical nerve roots
Support the intervertebral disks from protruding
From the medial wall of the intervertebral foramen
Become weight-bearing with age and dehydration
ZPJs in the cervical spine do not protect the IVD as much as
They do in the lumbar spine
herniation of the nucleus pulposus usually occurs in
Lower cervical spine
uncovertebral joint symptoms
very little pain
vague discomfort
Stiffness is greater than pain
No referred or neurological symptoms
Morning stiffness
uncovertebral joint signs
loss of extension
Neck in forward flex position
Limited side bending in flexion, neutral, and extension
decreased rotation
Crepitus /grinding
Disc changes in the lumbar spine
age related fissuring
Middle life or old age
Associated with pain
Trauma associated fissures
disc fissuring in the cervical spine
uncus grows upwards from the lateral edge of the vertebral body at about eight years
uncovtebral clefts appear by 12 years
Fine fissures extend across the disc by the late 20s or early 30s
35 to 40 the nucleus and posterior annulus are usually completely fissured
only the anterior annulus and longitudinal ligaments remaining intact
Disc thinning and resorption are frequently seen at
C5 to C6 or C6-C7
By the 70s or 80s
Spontaneous fusion is quite common at lower cervical levels
loss of disc height results in formation of
uncovertebral osteophytes
And hard posterior disc protrusion
Which encroach on the intervertebral and spinal canals
The upper cervical discs fissures before or after lower cervical discs
Before
in C1-C3 no nucleus pulposus to herniate posteriorly so…
no inflammatory and immune mediated chemicals to irritate the nerve roots
Lower incidence of upper cervical disc injury, and radiculopathy