Axial CT of the Lumbar and Sacral Spine         (Return to List of Available Self-Test Images - Normal Structure)
This is a contiguous series of axial CT slices of the lower spine in a 28y old man. You can look at the video frame by frame and try to identify the lettered structures to which lines are drawn. The answers will be revealed when you click on the appropriately labelled drop-down arrows below the image.

	A =                                             superior zygapophysis (articular process) of L3	B =                                             inferior zygapophysis (articular process) of L2
	C =                                             pedicle	D =                                             transverse process
	E =                                             spinous process	F =                                             lamina
	G =                                             dorsal sacral foramina	H =                                             ventral sacral foramina
	I =                                             sacral cornu	J =                                             sacral hiatus