Joints of the Cervical Spine Flashcards
How much flexion is there?
70-80 degrees
How much extension is there?
60 degrees
How much lateral flexion is there?
20-45 degrees each side
How much rotation is there?
70-90 degrees each side
nodding,protraction and retraction
C0-C1
flexion/extension of neck
C0-C1 20 degrees
C3-C9 80 degrees
rotation of neck
C1-C2 15 degrees
C3-C7 70-90 degrees
Atlanto occipital joint
synovial condyloid ellipsoid joint
between superior articular facet on atlas and the occiput
C0-C1
Atlanto axial joint
median joint,
between odontoid peg C2 and facet on anterior arch of C1
C1-C2
lower cervical spine
C3-C7
upper cervical spine
C0-C2
Functions of the spine
mobility
support brain and skull
protection of the spinal canal and neural structures
blood supply of certical artery
Where does cervical lordosis mostly occur?
C1-C2
lose this with age and tends to become flattened
occiput-C7 lordosis is 40 degrees
Atlanto axial joint (median A-A joint)
synovial pivot
convex rectangular facet on the fro of the 0 peg
Atlanto axial joint (lateral A-A joint)
synovial plane joint
2 concave facets of the atlas articulate with the 2 convex facets of the axis
adds to flexion, extension, side flexion
Atypical vertebrae
Atlas (c1)
Axis (C2)
vertical prominens (C7)
C1
ring shaped 2 lateral masses on TP bicncave superior articular surface vertebral canal, foreamen anterior arch, anterior facet for adontoid
C2
odontoid peg-protection to keep C1 and C2 in line first bony prominence 2 lateral articular facets narrow lamina Bifid SP
C7
short lamina
long SP
Function of cervical region
supports and moves the head
transmits spinal cord and vertebral arteries between the head and neck
