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NPTE MSK Review
Spine
Question | Answer |
---|---|
Atlanto-Occipital (AO) Joint is responsible for what movement | flexion/extension |
Atlantoaxial (AA) joints are responsible for what movements | flex/ext/ lat flex/ rotation (majority of rotation in skull from here) |
What are the articulations of intervertebral joints | formed by the superior/inferior surfaces of the vertebral bodies |
What are the articulations of the zygapophyseal joints | formed by the R/L superior and inferior articular facets of adjecent vertebra |
what is the function of the interspinous ligaments? | limit flexion and rotation of spine. Located between spinous processes |
what is the function of the ligamentum flavum? | limit flexion and rotation of spine. |
what is the function of the Anterior Longitudinal Ligament (ALL)? | * limits extension of spine * reinforces anterior portion of disks and vertebrae |
what is the function of the Posterior Longitudinal Ligament (PLL)? | limits flexion of spine |
what is the function of the Supraspinous Ligament | restrict flexion in T/S and L/S |
What nerve roots form the Lumbar Plexus? | T12, L1-L4 nerve roots |
What general areas does the Lumbar Plexus innervate? | anterior and medial muscles of thigh and medial leg/foot |
What nerve roots form the Sacral Plexus? | lumbosacral trunk , S1-4 |
What general areas does the Sacral Plexus innervate? | muscles of butt, thru sciatic nerve, muscles of posterior thigh and lower leg |