The normal curvatures in the cervical and lumbosacral regions of the human spine are formed by _________________.

Question

Quizplus · Accepted Answer

Wedge shape of intervertebral discs. In the neonate, the fetal, or primary, curvature of the vertebral column is present. A convex cervical secondary curvature appears in the cervical area when the child learns to hold the head erect. When the child learns to walk, a secondary curve appears in the lumbosacral region. The curvatures are formed by the intervertebral discs of the curved regions assuming a wedge shape.

The Normal Curvatures in the Cervical and Lumbosacral Regions of the Human