Question

The 12th rib forms an angle with the vertebral column, called the ______________ angle.

A. Costal.
B. Lumbar.
C. Sternal.
D. Cervical.

Answer 1

The angle formed by the 12th rib with the vertebral column is called the costal angle.

Step-by-step explanation:

The angle formed by the 12th rib with the vertebral column is called the costal angle. The ribs are flattened and curved bones that contribute to the wall of the thorax. They articulate posteriorly with the thoracic vertebrae and attach anteriorly via their costal cartilages to the sternum. The 12th rib forms the most posterior extent of the thoracic cage.