See also: Bird anatomy § Reproductive and urogenital systems Cloaca of a female bird Cloaca of a male bird A roseate spoonbill excreting urine in flightīirds reproduce using their cloaca this occurs during a cloacal kiss in most birds. The word is from the Latin verb cluo, "(I) cleanse", thus the noun cloaca, " sewer, drain". The cloacal region is also often associated with a secretory organ, the cloacal gland, which has been implicated in the scent-marking behavior of some reptiles, marsupials, amphibians, and monotremes. Mating through the cloaca is known as cloacal copulation, commonly referred to as cloacal kiss. Excretory openings with analogous purpose in some invertebrates are also sometimes referred to as cloacae. All amphibians, reptiles, birds, and a few mammals ( monotremes, tenrecs, golden moles, and marsupial moles), have this orifice, from which they excrete both urine and feces this is in contrast to most placental mammals, which have two or three separate orifices for evacuation. In non-human animal anatomy, a cloaca ( / k l oʊ ˈ eɪ k ə/ kloh- AY-kə), PL: cloacae ( / k l oʊ ˈ eɪ s i/ kloh- AY-see or / k l oʊ ˈ eɪ k i/ kloh- AY-kee), is the posterior orifice that serves as the only opening for the digestive, reproductive, and urinary tracts (if present) of many vertebrate animals. For other uses, see Cloaca (disambiguation).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |