Vertebral Articulations Flashcards
What are intervertebral joints designed for?
STRENGTH
+
WEIGHT BEARING
Intervertebral joints are cartilagenous and connected by _______________ discs.
INTERVERTEBRAL
Which joints of the vertebrae contain no IVDs?
CRANIOVERTEBRAL JOINTS
Name the joint where the superior articular facets on the lateral masses of C1 articulate with the occipital condyles of the skull?
ATLANTO - OCCIPITAL JOINT
What type of synovial articulation is found at the atlanto-occipital joint?
CONDYLOID
Name the 2 available movements at the atlanto-occipital joint?
FLEXION OF HEAD ON NECK
+
EXTENSION OF HEAD ON NECK
Name the ligament of the atlanto-occipital joint and what is it responsible for checking?
ATLANTO - OCCIPITAL MEMBRANE
+
CHECKS EXCESSIVE FLEX/EXT OF NECK
Name the joint where C1 articulates with the dens of C2?
ATLANTO - AXIAL JOINT
What type of synovial articulation is found at the atlanto-axial joint?
PIVOT
What is the available movement at the atlanto-axial joint?
ROTATION
Name the ligament which holds the dens of C2 against the anterior arch of C1?
TRANSVERSE LIGAMENT OF ATLAS
Name the ligament whose bands travel from transverse ligament superiorly to the occipital bone inferiorly to the body of C2?
CRUCIATE LIGAMENT
aka
CRUCIFORM LIGAMENT
Name the alar ligament attachments?
DENS
to
LATERAL MARGINS OF FORAMEN MAGNUM
Name the apical ligaments attachments?
DENS
to
ANTERIOR MARGIN OF FORAMEN MAGNUM
Name the ligament anchored to the posterior aspect of the vertebral bodies and IVDs from sacrum to C2?
POSTERIOR LONGITUDINAL LIGAMENT (PLL)
What does the posterior longitudinal ligament check?
HYPERFLEXION OF THE SPINE
What does the posterior longitudinal ligament prevent?
POSTERIOR PROTRUSION OF THE IVD
The inferior articular facet of one vertebra articulates with the superior articular facet of what?
NEXT INFERIOR VERTEBRA
What type of synovial articulation is found at facet joints of the vertebrae?
PLANE
What is the orientation of the cervical facets?
OBLIQUE (HIGHER ANTERIORLY)
What is the orientation of the thoracic facets?
MORE IN FRONTAL PLANE
What is the orientation of the lumbar facets?
MORE IN THE SAGITTAL PLANE
Name the 4 available movements at the vertebral facet joints?
FLEXION \+ EXTENSION \+ ROTATION \+ LATERAL FEXION
Name the 3 factors affecting ROM?
SIZE and SHAPE of IVDs \+ ANGLE OF THE FACET JOINTS \+ LAXITY OF LIGAMENTS/JOINT CAPSULES
Where is ligamenta flava found?
LAMINA TO LAMINA FROM SACRUM UP TO C1
Ligamentum flava helps to preserve normal __________.
CURVES
Where are the interspinous ligaments (limiting flexion) located?
BETWEEN SPs
Name the 2 ligaments of the vertebrae which limit flexion?
INTERSPINOUS LIGAMENT
+
SUPRASPINOUS LIGAMENT
Name the ligament which spans from C7 to the back of the skull?
LIGAMENTUM NUCHAE
Ligamentum nuchae can be seen as a ________________ of the interspinous/supraspinous ligaments.
THICKENING
