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Multiple Choice
Which of the following is a prominent bone marking found on the maxilla?
A
External occipital protuberance
B
Mastoid process
C
Coronoid process
D
Infraorbital foramen
Verified step by step guidance
1
Step 1: Begin by identifying the anatomical location of the maxilla. The maxilla is the upper jawbone and forms part of the orbit, nasal cavity, and hard palate.
Step 2: Review the definitions of the listed bone markings to determine which one is associated with the maxilla. For example:
- External occipital protuberance: A bony projection located on the occipital bone at the back of the skull.
- Mastoid process: A rounded projection on the temporal bone behind the ear.
- Coronoid process: A triangular projection on the mandible (lower jawbone).
- Infraorbital foramen: An opening located below the orbit (eye socket) on the maxilla.
Step 3: Focus on the infraorbital foramen, which is a prominent feature of the maxilla. It serves as a passage for the infraorbital nerve and blood vessels.
Step 4: Eliminate the other options based on their anatomical locations. The external occipital protuberance, mastoid process, and coronoid process are not part of the maxilla.
Step 5: Conclude that the correct answer is the infraorbital foramen, as it is the only bone marking listed that is found on the maxilla.