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Anatomy General 07f59c52

With regard to paranasal sinuses, true is

A
The maxillary sinus of the newborn is relatively large compared to that of the adult
B
The mucous membrane of the maxillary sinus and the upper premolar teeth have the same nerve supply
C
The frontal, spheroidal, maxillary and anterior ethmoidal sinuses drain into the middle meatus
D
The spheroidal sinuses are supplied by anterior ethmoidal nerves
High-Yield Explanation
Paranasal sinuses are rudimentary in newborn. Sphenoid sinus drains into sphenoethmoidal recess and not into middle meatus. Sphenoid sinus is supplied by posterior ethmoidal nerve.
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