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Sphenoid sinus

Other Terms: Nasal sinuses, Sinus sphenoidalis, Sinus sphénoïdal

Description

Variable sized cavities located within the body of the sphenoid that communicate antero-inferiorly with the spheno-ethmoidal recess. Early in life they are simple extensions of the nasal epithelium that enlarge and cavitate the bone forming large sinuses by adolescence.

Etymology

Sinus is Latin for a curve, fold, bay, or gulf. In anatomy it can describe anything from a large, hollow cavity to a concave groove-like channel.

Latin

Sinus sphenoidalis

French

Sinus sphénoïdal

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