Question

question 39

rib 7 is a ______ rib.

a. true
b. floating
c. false
d. pelvic
e. cartilaginous

Explanation:

Identify the anatomical structure

The question asks about the classification of "Rib 7" in human Skeletal Anatomy.

Analyze rib classification

In human anatomy, the 12 pairs of ribs are classified into three main groups based on their attachment to the sternum:

• True ribs (ribs 1–7): Attach directly to the sternum via their own costal cartilages.
• False ribs (ribs 8–10): Attach indirectly to the sternum by joining the cartilage of the rib above them.
• Floating ribs (ribs 11–12): Have no anterior attachment to the sternum.

Match with the given options

Since Rib 7 attaches directly to the sternum, it is classified as a "true" rib. This corresponds to option A.

Answer:

• (A) true (Correct answer)
• (B) floating
• (C) false
• (D) pelvic
• (E) cartilaginous