Nasal bone
Lacrimal bone
Vestigial remnant
of Rathke’s pouch
Medial plate of
pterygoid process
Frontal sinus
within frontal bone
1 year
4 years
7 years
12 years
Old age
Maxillary sinus
within maxilla
Pterygoid hamulus
Semilunar hiatus
Superior nasal meatus
Hypophyseal fossa
Left orbit
Molar tooth
Middle nasal concha
Nasal septum
Nasal cavity
Inferior nasal concha
Body of sphenoidal bone
Lower border of superior nasal concha
Lower border of highest nasal concha
Uncinate process of ethmoidal bone
Bones of nasal cavity
and paranasal sinuses
at birth
Part of nasolacrimal duct
that formed in depths of
nasooptic furrow
foramen (becomes
bony canal)
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)
Sphenoidal sinus within bony shell (sphenoidal concha)
located anterior and lateral to body of sphenoidal 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
Sinus represents one or more anterior ethmoidal cells
opening into semilunar hiatus of middle nasal meatus
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