| choana | The opening into the nasopharynx of the nasal cavity on either side. Synonym: isthmus pharyngonasalis, posterior naris, postnaris. Origin: Mod. L. Fr. G. Choane, a funnel (05 Mar 2000) |
|---|---|
| choanal | Pertaining to a choana. (05 Mar 2000) |
| choanal atresia | Congenital bony or membranous occlusion of one or both choanae, due to failure of the embryonic bucconasal membrane to rupture. (12 Dec 1998) |
| choanal polyp | An antral-choanal polyp that extends into the nasopharynx; generally originates in the antrum. (05 Mar 2000) |
| choanate | Having a funnel, i.e., with a ring or collar. (05 Mar 2000) |
| primary choana | Primitive choana, initial opening of the nasal pits and olfactory sac of the embryo into the rostral part of the primordial oronasal cavity, before the formation of the secondary palate. (05 Mar 2000) |
|---|---|
| secondary choana | The definitive choana opening into the nasopharynx, after the nasal chambers have been lengthened by the formation of the secondary palate. Synonym: internal nostril. (05 Mar 2000) |
Synonyms : Atresias, Choanal, Choanal Atresias
| choanal atresia |
congenital bony or membranous occlusion of one or both choanae, due to failure of the embryonic bucconasal membrane to rupture. Cf. atretorrhinia.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
|
|---|---|
| choana |
(Plural choanae) An opening between the nasal cavity and oropharynx (mouth) in birds and reptiles.
Ãâó: www.peteducation.com/dict_alpha_listing.cfm
|
| choanal |
Petaining to the choana - the opening into the nasopharynx of the nasal cavity on either side.
Ãâó: aspin.asu.edu/geneinfo/glos-c.htm
|
| choana |
This is the slit in palate of the bird's mouth. Unlike humans, this passage connects the bird's nasal passages with its mouth. When the bird closes its beak, its glottis closes this passage.
Ãâó: home.rochester.rr.com/thecaiques/glossary.htm
|
| choanal atresia |
Atresia of nares (anterior) (posterior) Congenital stenosis of nares (anterior) (posterior)
Ãâó: icd9cm.chrisendres.com/index.php
|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|