Dugwayâs Chemical Test Division successfully tests JCAD system on Stryker. Caged in a menacing looking metal grid with intricate sensory equipment attached to all sides the Armyâs M113 NBC RV Stryker vehicle sits on a dusty road at Dugway Proving Groundâs target S grid being readied by its crew for testing....
The following conditions are when secondary curvatures of the spine  develop:   Cervical-when the baby starts to hold its head up   Lumbar-when the baby starts to â¦ walk. 4 people found this useful.
Scoliosis is a condition involving an abnormal sideways curvature of the spine. It can be caused by congenital, developmental or degenerative problems, but most cases of scoliosis actually have no known cause called idiopathic scoliosis. Scoliosis usually develops in the thoracic spine or the thoracolumbar area of the spine. The curvature of the back may develop as a single curve (shaped like the letter C) or as two curves (shaped like the letter S).