Vertebral Column Curvatures:

primary curves:Thoracic and sacral curves: present at birth

Secondary curves: Cervical and lumbar: Develop at 3 and 9 months respectively

 

Adult Curvatures:

Include

  • Cervical curvature; convex anteriorly (c1 T2)

  • Thoracic curve, concave anteriorly (T2 T12)

  • Lumbar curve, convex anteriorly (T12 and lumbosacral joint)

  • Saccrococcygeal (pelvic) curve, concave anteriorly (lumbosacral joint to tip of the coccyx)

Note:
Vertebral column characterized by gentle sinuous bends, which give the column some resilience, but the intervertebral discs are the major shock absorbing devices.


Home | Project Anatomy | Gross Anatomy | Topic Index | Chapter 13

CHAPTER 13: Back and Scapula Region