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Multiple Choice
Which bone forms the lower jaw and is visible on a radiograph of the head and neck?
A
Mandible
B
Maxilla
C
Frontal bone
D
Zygomatic bone
Verified step by step guidance
1
Step 1: Begin by identifying the anatomical location of the lower jaw. The lower jaw is the movable part of the skull that holds the lower teeth and is involved in chewing and speaking.
Step 2: Review the names and functions of the bones listed in the options: Mandible, Maxilla, Frontal bone, and Zygomatic bone. Understand their anatomical positions and roles in the skeletal system.
Step 3: Recall that the mandible is the only movable bone of the skull and forms the lower jaw. It is visible on radiographs of the head and neck due to its distinct shape and position.
Step 4: Compare the mandible to the other options: The maxilla forms the upper jaw, the frontal bone is part of the forehead, and the zygomatic bone contributes to the cheek structure. None of these form the lower jaw.
Step 5: Conclude that the correct answer is the mandible, as it is the bone that forms the lower jaw and is visible on radiographs of the head and neck.