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concha

 [kong´kah] (pl. con´chae) (L.)
a shell-shaped structure.
concha of auricle the hollow of the auricle of the external ear, bounded anteriorly by the tragus and posteriorly by the antihelix.
inferior nasal concha a bone forming the lower part of the lateral wall of the nasal cavity.
middle nasal concha the lower of two bony plates projecting from the inner wall of the ethmoidal labyrinth and separating the superior from the middle meatus of the nose.
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 ethmoidal labyrinth and forming the upper boundary of the superior meatus of the nose.
supreme nasal concha a third thin bony plate occasionally found projecting from the inner wall of the ethmoidal labyrinth, above the two usually found.

con·cha

, pl.

con·chae

(kon'kă, kon'kē), [TA] Avoid the mispronunciation kon'chă.
In anatomy, a structure comparable with a shell in shape, as the auricle or pinna of the ear or a turbinate bone in the nose.
[L. a shell]

concha

/con·cha/ (kong´kah) pl. con´chae   [L.] a shell-shaped structure.
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.
Enlarge picture
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.
Enlarge picture
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.
Enlarge picture
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.

concha

(kŏng′kə)
n. pl. con·chae (-kē′)
1. Anatomy Any of various structures, such as the external ear, that resemble a shell in shape. Also called conch.
2. Architecture The half dome over an apse.

con′chal (-kəl) 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.

con·cha

, pl. conchae (kong'kă, -kē) [TA]
anatomy A structure similar to a shell in shape, as the auricle or pinna of the ear or a turbinate bone in the nose.
[L. a shell]

concha

The visible, external part of the ear. Also known as the pinna or auricle.

con·cha

, pl. conchae (kong'kă, -kē) [TA]
In anatomy, a structure comparable with a shell in shape.
[L. a shell]

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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