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Multiple Choice
Which of the following bones does not contain a paranasal sinus?
A
Frontal bone
B
Sphenoid bone
C
Maxilla
D
Zygomatic bone
Verified step by step guidance
1
Understand what paranasal sinuses are: Paranasal sinuses are air-filled spaces located within the bones of the skull and face. They are connected to the nasal cavity and help to lighten the weight of the skull, produce mucus, and contribute to voice resonance.
Identify the bones that typically contain paranasal sinuses: The main bones that contain paranasal sinuses are the frontal bone, sphenoid bone, ethmoid bone, and maxilla.
Review the list of bones provided in the problem: Frontal bone, Sphenoid bone, Maxilla, and Zygomatic bone.
Compare the list of bones with paranasal sinuses to the options given: The frontal bone, sphenoid bone, and maxilla are known to contain paranasal sinuses.
Determine which bone does not contain a paranasal sinus: The zygomatic bone is not typically associated with containing a paranasal sinus, making it the correct answer.