Lateral view of an adult female flexing and extending her back.

Anterolateral view of the joints of the pelvis and hip.

Posterior view of the joints of the pelvis and hip.

Lateral view of the lumbar vertebrae and pelvis.

Lumbar puncture procedure; image shows one procedure for stabilizing and guiding the needle.

Anterior view of the deep nerves that make up the sacral plexus.

Lateral view of the myotomes of the body, showing flexion/extension of shoulder, hip, and knee, dorsiflexion and plantar flexion of ankle.

Lateral view of male head and neck bent to the back.

Sagittal anatomy of the spinal canal and sites of injection for regional anethesia.

Posterior view of the lumbar vertebrae and pelvis.

Lateral view of the joints of the pelvis and hip.

Posterior view of the hip and lower back region illustrating the quadratus lumborum muscles and its bony attachments. Muscles are shown on both sides of spine.

Back and hip extension