The primary spinal curves
A)include the cervical and lumbar curves.
B)include the thoracic and sacral curves.
C)include all four spinal curves.
D)include the cervical and thoracic curves.
E)None of the answers is correct.

Question

Quizplus · Accepted Answer

The primary spinal curves include the thoracic and sacral curves. These curves develop during fetal development and are present at birth. The thoracic curve appears as a result of the shape of the rib cage, while the sacral curve results from the convex shape of the sacrum bone. The cervical and lumbar curves, on the other hand, are secondary curves that develop as a child begins to crawl and walk.

The Primary Spinal Curves