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Paranasal Sinuses: Changes with Age ANATOMY


Paranasal Sinuses: Changes with Age ANATOMY
Sphenoidal sinus within bony shell (sphenoidal concha) located anterior and lateral to body of sphenoid bone (broken line indicates sinus lateral to sphenoid body), Sinuses represent two or more posterior ethmoidal cells opening into superior nasal meatus, Sinus represents one or more middle ethmoidal cells opening into middle nasal meatus.

Body of sphenoid bone, Lower border of superior nasal concha, Lower border of highest nasal concha, Uncinate process of ethmoid bone, Bones of nasal cavity and paranasal sinuses at birth, Part of nasolacrimal duct that formed in depths of nasooptic furrow, Part of nasolacrimal duct within nasal cavity with slit-like opening in inferior nasal meatus, Growth of frontal and maxillary sinuses throughout life, Maxillary sinus with opening into semilunar hiatus (striped area represents membrane forming most of medial wall of sinus), Middle nasal concha (cut edge) (inferior nasal concha completely removed).
Maxillary sinus within maxillary bone ethmoid bone, Palatine bone, Pterygoid Hamulus, Semilunar hiatus, Maxillary sinus with op, Maxillary bone, Superior nasal meatus, Hypophyseal fossa, Left orbit, Molar tooth, Middle nasal concha, Nasal septum Nasal cavity, Inferior nasal concha, Palate.