Question

which of the following best describes the change in the facet orientation l1 - l5?
a) mostly coronal (l1) to more transverse (l5)
b) mostly coronal (l1) to more sagittal (l5)
c) mostly sagittal (l1) to more horizontal (l5)
d) mostly sagittal (l1) to more coronal (l5)

Explanation:

In the lumbar spine, from L1 - L5, the facet orientation changes from mostly sagittal at L1 to more coronal at L5. This change in orientation affects the types of movements possible at different lumbar levels.

Answer:

D. Mostly sagittal (L1) to more coronal (L5)