Question

In the human body, which one of the following is anatomically correct?

• A. Collarbones - 3 pairs
• B. Salivary glands - 1 pair
• C. Cranial nerves - 10 pairs
• D. Floating ribs - 2 pairs

Answer 1

The correct option is D Floating ribs - 2 pairs

Ribs are 12 pairs of bony bars which form the sides of the chest cage. Ribs are of 3 types - true ribs, false ribs, and floating ribs. Anatomically floating ribs are of 2 pairs (11th and 12th ). These ribs are imperfectly formed and do not reach the sternum. They protect the kidneys.
Collarbones - 2 pairs
Salivary glands- 3 pairs
Cranial nerves - 12 pairs