Image Description: Illustration of the lumbar vertebrae in medial view, showing the L3 and L4 vertebrae, with callout showing the location of a facet joint injection. Facet joints may become painful due to arthritis or injury and an injection of steroid medication can ease the pain. The lumbar vertebrae are five cylindrical bones that form the spine in the lower back, carrying the weight of the upper body and providing flexibility and movement of the trunk. The lumbar vertebrae also protect the spinal cord and nerves. Image File Sizes: Size Pixels Inches (@300dpi) cm (@300dpi) Medium 1200 x 671px 4.0 x 2.2” 10.2 x 5.7cm Large 2400 x 1343px 8.0 x 4.5” 20.3 x 11.4cm X-Large 3931 x 2199px 13.1 x 7.3” 33.3 x 18.6cm Anatomy Visible in the Medical Illustration Includes: Lumbar vertebrae, L4, L3, vertebral body, pedicle, lamina, intervertebral disc, spinous process, transverse process, facet joint, injection, facet joint injection Image created by: Joanna Culley
