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![Trigger points and referred pain for the extensor digitorum](http://d3e1m60ptf1oym.cloudfront.net/dd5c5297-2ec1-477d-979c-e8b1e0289f3a/extensor_digitorum_tgp_large.jpg)
![Facet joints labeled.](http://d3e1m60ptf1oym.cloudfront.net/e4174712-08f9-11e3-b959-a99cf6a23489/facet_joint_labeled_large.jpg)
Facet joints labeled.
Diagram showing location and anatomy of lumbar facet joints of the spine, labeled drawing.
© Alila Medical Media
Image size: 22.0 Mpixels (63 MB uncompressed) - 5001x4400 pixels (16.7x14.7 in / 42.3x37.3 cm at 300 ppi)
![Facet joints unlabeled.](http://d3e1m60ptf1oym.cloudfront.net/e6e84cca-08f9-11e3-a693-150782e984ef/facet_joint_large.jpg)