"A lateral view of spondylolisthesis, which is when the lamina breaks off the vertebral body at the pars and the main vertebral body slides anteriorly. "
Price: "10"
"Composition having background of dark blue pavement with embedded multicolored pebbles contrasting with autumn oak leaves in various shades of brown and green. Has a strong graphic feeling."
Price: "10"
"Oregon Trail Ruts Historic Site near Ft. Laramie, Wyoming. Trail ruts were carved by iron-rimmed wagon wheels into sandstone. Wagons were 4' wide by 12' long and heavily loaded.
