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]

Farlex Partner Medical Dictionary © Farlex 2012

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.

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]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

concha

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

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

con·cha

, pl. conchae (kong'kă, -kē) [TA]

In anatomy, a structure comparable with a shell in shape.

[L. a shell]

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References in periodicals archive

According to the Mladina classification, a type 3 SD involves a unilateral crest at the level of the head of the middle nasal concha. (1) In this case, the deviated part is localized in the upper part of the nose, and the nasal valve region and nasal patency are unaffected (unlike the case with a type 2 SD).

Effects of septoplasty on olfactory function evaluated by the Brief Smell Identification Test: A study of 116 patients

Therefore, the inferior nasal concha was shifted in the direction of the nasal septum by fracture and the inferior nasal meatus was broadened.

Comparison of outcomes between endoscopic surgery and conventional nasal packing for epistaxis in the posterior fornix of the inferior nasal meatus

Other authors subsequently confirmed bioelectric theory, stating that the epithelium of nasal polyps has the capacity to extend reabsorption of [Na.sup.+] ions and loss of Clions in comparison to the unaltered epithelium of nasal concha [30].

Etiopathogenesis of nasal polyps

For the cytologic examination, nasal epithelial cells were swabbed from both sides of the middle third of inferior nasal concha by the translational and rotational movement of a small nylon brush (as commonly used in bronchoscopy).

Cytopathology of the nasal mucosa in chronic exposure to diesel engine emission: a five-year survey of Swiss customs officers. (Environmental Medicine)

Choanal polyp originated from the inferior nasal concha. Eur Arch Otorhinolaryngol 2008;265(4):477-9.

Unusual case of sleep apnea in a child

Human respiratory epeithelial cells from nasal concha expressed stem cell genes even after serial passaging.Med.

Expression of Mesenchymal Stem Cell Phenotype in Human Nasal Respiratory Epithelial Cells/Expresion del Fenotipo de Celulas Troncales Mesenquimales en Celulas Epiteliales Nasales Humanas