Which of this following pas of veebral canal will show secondary curves with concavity towards back?
In adults, the cervical curve and lumbar curve is concave backwards. The thoracic and sacral curve is convex backwards.Ref: Clinical Anatomy by Systems, Richard S. Snell, Edition 2007, Chapter 12, Page 860; Anatomy at a Glance, Omar Faiz, 3rd Edition, Chapter 77, Page 175.
Cervical Veibral Canal
Thoracic Veibral Canal
Sacral Veibral Canal
Coccyx Veibral Canal