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Multiple Choice
Which bone does not contain a paranasal sinus?
A
Maxilla
B
Temporal bone
C
Ethmoid bone
D
Frontal 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 bones that usually contain paranasal sinuses are the maxilla, ethmoid, frontal, and sphenoid bones.
Review the list of bones provided in the problem: Maxilla, Temporal bone, Ethmoid bone, Frontal bone.
Compare the list of bones with paranasal sinuses to the options given: Maxilla, Ethmoid bone, and Frontal bone are known to contain paranasal sinuses.
Determine which bone does not belong to the group of bones with paranasal sinuses: The Temporal bone is not typically associated with paranasal sinuses, making it the correct answer.