Question

Help me labels this

Answer 1

Answer:

Here are the labels:

6. Zygomatic bone

7. Vomer

8. Mandible

9. Maxilla

18. Sternum

19. Costal cartilage

20. True ribs

21. False ribs

22. Floating ribs

Explanation:

• The skull comprises the 8 cranial bones that house and protect the brain and 14 facial bones that protect the sensitive organs such as eyes, nose and mouth.
• Out of the 14 facial bones, the mandible, maxilla, zygomatic and vomer along with the frontal bone are the primary bones of the skull.
• The rib cage comprises of 12 pairs of ribs connected to the sternum, the main bone that anchors the rib cage, through the costal cartilage.
• The ribs numbered 1 to 7 are called true ribs because costal cartilage connects these bones directly to the sternum.
• The ribs 8 to 12 are classified as false ribs because they are not directly connected to the sternum.
• The last two ribs 11 and 12 are called floating ribs because they do not connect to the sternum at all.