Degenerated Disc Spine Model
A degenerated disc model crafted from an elderly female specimen. With a two-part intervertebral disc, nerves enter the central aspect of the nucleus from the periphery of the annulus. The embedded innervation allows visible movement of the nucleus under differing vector loads. Very helpful in understanding directional preferences for back pain.
Frosted clear natural textured L4 with a view lens
Painted facets (blue-hyaline; red-perichondrial vascularization)
Lateral recess osteophyte
Opaque white matching L5
Two-part intervertebral disc
Posterior-lateral (left and right) reddened annular fissure
Dynamic disc bulging
Dynamic disc herniation (nuclear movement (protrusion-extrusion) through an annular tear) … designed to perform repeatedly. Nucleus will retract naturally when compressive forces are relieved.