concha /con·cha/ (kong´kah) pl. con´chae [L.] a shell-shaped structure.
concha
concha of auricle the hollow of the auricle of the external ear, bounded anteriorly by the tragus and posteriorly by the anthelix.
concha bullo´sa a cystic distention of the middle nasal concha.
inferior nasal concha a thin, bony plate forming the lower part of the lateral wall of the nasal cavity, and the mucous membrane covering the plate. 
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Nasal conchae.
middle nasal concha the lower of two bony plates projecting from the inner wall of the ethmoid labyrinth and separating the superior from the middle meatus of the nose, and the mucous membrane covering the plate.
Nasal conchae.
sphenoidal concha a thin curved plate of bone at the anterior and lower part of the body of the sphenoid bone, on either side, forming part of the roof of the nasal cavity.
superior nasal concha the upper of two bony plates projecting from the inner wall of the ethmoid labyrinth and forming the upper boundary of the superior meatus of the nose, and the mucous membrane covering the plate.
Nasal conchae.
supreme nasal concha a thin bony plate occasionally found projecting from the inner wall of the ethmoid labyrinth, above the bony superior nasal concha, and the mucous membrane covering the plate.
con·cha (k ng k )n. pl. con·chae (-k   ) Any of various structures, such as the external ear, that resemble a shell in shape. con chal (-kl) adj. |
concha
[kong′kə]
a body structure that is shell-shaped, as the cavity in the external ear that surrounds the external auditory canal meatus or patella or vulva.
concha
pl. conchae [L.] a shell-shaped structure.
concha of auricle
the base of the auricle of the external ear, bounded anteriorly by the tragus and posteriorly by the antihelix.
ethmoidal concha
a series of scroll-like bones which arise from the ethmoid bone, project into the nasal chambers and support the olfactory mucous membrane.
nasal concha
one of two or three delicate, mucosa-covered turbinate bones occupying a large part of each half of the nasal cavity. See also Table 10.
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