This flexible life-size model of a human spine with muscles also demonstrates some common spine disorders.
Features the following:
Color-coded spinal curvatures
occipital bone and cerebellum
circle of Willis
vertebral artery
spinal nerves
sciatic nerve
right brachial plexus
1st and 2nd ribs
sacroiliac ligaments

several muscles including:
subocciptal triangle
longus capitis
scalene muscles
psoas major and minor
iliacus
gluteus medius and minimus
piriformis
gemellus

The following disorders are shown:
bone spurs on L5
herniated disc between L4 and L5
L1, L2 and L3 divide to show compression fractures, osteoporosis, bone tumor
osteoarthritis of the hip
Includes hanging stand
size: 34" weight 14 lbs