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Paranasal sinus - Coggle Diagram
Paranasal sinus
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Sphenoidal sinus
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ABOVE :pituitary, optic chiasma ,optic tract
Laterally : cavernous sinus ,ICA, CNVI
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Frontal sinus
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Under-developed at birth ,well developed by 7 years old
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Lined by respiratory mucosa and communicate directly or indirectly with nasal cavity thru narrow channel