Joints and Ligaments of the Axial Skeleton (Quiz 3) Flashcards
Ligament that travels from the posterior aspect of C2 to the Sacrum
Anchored to all Vertebral bodies and Intervertbral discs from C2 to the Sacrum
Checks Hyperflexion of the Spine
Prevents posterior protrusion (movement) of IVDs
Posterior Longitudinal Ligament (PLL)
The most superior part of the PLL
Attaches onto the Occiput
(Starts at C2)
Tecterial Membrane
Ligament that travels from the Occiput to the Sacrum
Is Anchored to the anterior aspect of the Vertebral bodies and IDV’s
Checks Hyperextension of the spine
Stabilizes intervertebral joints
Anterior Longitudinal Ligament (ALL)
Plane Joints
Where the inferior articular facet of one vertebra articulates with the superior articular facet of the next inferior vertebra
Facet joints
Movements of Facet Joints
Flexion/Extension, Rotation, Lateral Flexion
Factors affecting ROM of the Spine
- Size and Shape of IVD’s
- Angle of the Facet Joints
- Laxity of Ligaments/Joint Capsules
Orientation of Cervical facet joints
Oblique (higher anteriorly)
Orientation of Thoracic Facet joints
More in the Frontal Plane
(Allowing more lateral flexion)
Orientation of Lumbar Facet Joints
More in the Sagittal plane
(allowing more flexion/extension)
Ligament that travels along the tips of the SP’s from C7 to the Sacrum
Checks Flexion
Supraspinous Ligaments
Ligament that travels from the SP of C7 to the back of the skull
It is a thickening of the Interspinous/Supraspinous Ligaments
Ligamentum Nuchae
(Nuchal Ligament)
Ligment that travels from C1 to the Sacrum
Connects the laminae of two adjacent vertebrae
Helps to preserve normal curves, and helps the spine to return the spine to a normal position after flexion
Ligamneta Flava
Aka Yellow Ligament (elastin - more stretch and recoil)
Ligaments between SPs
Checks Flexion
Interspinous Ligaments
The only bony articulation between the upper limb and the axial skeleton
Saddle Joint
The Clavical articulates with the Manubrium and Costal Cartilage of the 1st rib
Joint Surfaces are seperated by a fibrocartilagenous articular disc (Shock absorber for forces along the clavicle)
Sternoclavicular Joint
(S-C Joint)
Movements of the Sternoclavicular Joint
Elevation/Depression, Protraction/Retraction, Rotation (w/ circumduction)