Concept
Version 6
Created by Boundless
Human Axial Skeleton
Vertebral column
(a) The vertebral column consists of seven cervical vertebrae (C1–7), twelve thoracic vertebrae (Th1–12), five lumbar vertebrae (L1–5), the sacrum, and the coccyx. (b) Spinal curves increase the strength and flexibility of the spine.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Types of Skeletal Systems. October 17, 2013."
http://cnx.org/content/m44781/latest/Figure_38_01_07.jpg
OpenStax CNX
CC BY 3.0.