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Multiple Choice
Which facial bones fuse to form the upper jaw?
A
Maxillae
B
Nasal bones
C
Palatine bones
D
Zygomatic bones
Verified step by step guidance
1
Begin by identifying the facial bones that contribute to the structure of the upper jaw. The upper jaw is primarily formed by the maxillae.
Understand that the maxillae are a pair of bones that fuse together at the midline to form the upper jaw and the central portion of the facial skeleton.
Recognize that the nasal bones, palatine bones, and zygomatic bones are also part of the facial skeleton but do not form the upper jaw. The nasal bones form the bridge of the nose, the palatine bones contribute to the hard palate, and the zygomatic bones form the cheekbones.
Consider the anatomical position and connections of the maxillae. They articulate with several other bones, including the nasal bones, palatine bones, and zygomatic bones, but their primary function is forming the upper jaw.
Conclude that the fusion of the maxillae is essential for the formation of the upper jaw, while the other bones listed have different roles in the facial structure.