Question

2 multiple choice 1 point if you have a 13th rib pair, then it is often called _. clavicular rib sternal rib thoracic rib cervical rib clear my selection

Explanation:

• Clavicular rib: This term is not a standard anatomical name for an extra rib like the 13th pair.
• Sternal rib: Sternal ribs are the true ribs (1 - 7) that attach directly to the sternum. The 13th rib pair (if present) is not a sternal rib.
• Thoracic rib: The normal thoracic ribs are 12 pairs. An extra 13th pair is not typically called a thoracic rib in the context of this naming convention.
• Cervical rib: A cervical rib is an extra rib that can sometimes develop. It is an abnormal anatomical structure and is the term used for an extra (like a 13th) rib pair in this context.

Answer:

Cervical rib