| 单词 |
branchial clefts |
| 释义 |
Branchial clefts
| the openings between the branchial arches through which water passes. | | See under Branchial. |
See also: Branchial, Cleft EncyclopediaSeebranchialbranchial clefts
bran·chi·al cleftsa bilateral series of slitlike openings into the pharynx through which water is drawn by aquatic animals; in the walls of the clefts are the vascular gill filaments that take up oxygen from the water passing through the clefts; sometimes wrongly applied to the pharyngeal grooves of mammalian embryos, which are imperforate, rudimentary homologues of complete gill clefts. Synonym(s): gill cleftsbranchial clefts the apertures in the walls of the PHARYNX of fish or young amphibia (four-seven pairs) which allow water entering by the mouth to pass out over the gills. |
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