Definition, Betydelse & Anagram | Engelska ordet CLOACA

Definition av CLOACA

1. (anatomi) kloak; kroppsöppning hos vissa djur

Exempel på hur du använder CLOACA i en mening

• Defecation (or defaecation) follows digestion, and is a necessary process by which organisms eliminate a solid, semisolid, or liquid waste material known as feces from the digestive tract via the anus or cloaca.
• Most opalines live in the large intestine and cloaca of anurans (frogs and toads), though they are sometimes found in fish, reptiles, molluscs and insects; whether they are parasitic is not certain.
• The male has a greyish green back; yellow rump; the sides of the tail are yellow and the end is black; the wings are black with a distinctive yellow wing stripe; its breast is yellowish becoming whiter and striped towards the cloaca; it has a black bib (or chin patch) and on its head it has two yellow auriculas and a black cap.
• The male and female have identical plumage, therefore sexing them must be done through palpation of the cloaca.
• For palaeognaths and waterfowl, the males do not use the cloaca for reproduction, but have a phallus.
• Male cartilaginous fish have claspers formed from the posterior portion of their pelvic fin which serve to channel semen into the female's cloaca during mating.
• In some organisms, including monotremes, birds and some fish, discharge from the urological, digestive, and reproductive systems empty into a common sac called the cloaca.
• It is differs from chivi by having greener upperparts, flanks and sides, and a more yellow crissum (area surrounding the cloaca).
• Males court females with a ritualised display and deposit a spermatophore on the ground, which the female then picks up with her cloaca.
• A mature male's cloaca extends beyond the carapace edge, a female's is placed exactly on the edge if not nearer to the plastron.
• If she is ready, she swims off with the male, while both partners contort their bodies so that the right clasper of the male enters the cloaca of the female.
• Copulation, which involves the insertion of the penis or other intromittent organ into the vagina (in most mammals) or to the cloaca in monotremes, most reptiles, some birds, the tailed frog, some fish, the disappeared dinosaurs, as well as in other non-vertebrate animals.
• The tail end contains cloaca and precloacal sucker on the ventral side, which are surrounded by sensory structures called caudal papillae.
• Two species have the black plumage enlivened by a red rump, five have a yellow rump and in some cases yellow on the shoulders or crissum (the undertail coverts surrounding the cloaca).
• Head long; snout tapering; ear-opening small, oval; digits with enlarged lamellae on the ventral surface; tail with small tubercles, long and tapering to a fine point; three enlarged tubercles on either side of the cloaca; males with six pre-anal pores; a longitudinal pre-anal groove present, prominent in males, less distinct but present in females; dorsal and lateral aspects of body covered in distinct, obtuse tubercles.
• If this threat display does not work to deter a would-be predator, the hognose snake will often roll onto its back and play dead with its mouth open and tongue lolling, going as far as to emit a foul musk from the cloaca.
• This continues to grow caudalward until it opens into the ventral part of the cloaca; beyond the pronephros it is termed the mesonephric duct.
• Especially during the mating season, there is a clear sexual dimorphism: the males have very strong rut callosities consisting of 10 to 12 horn platelets on the inside of the hind legs, a strongly thickened tail as well as horny toe tips and a spherically arched cloaca.
• As the human embryo grows and caudal folding continues, the urorectal septum divides the cloaca into a ventral urogenital sinus and dorsal anorectal canal.

Förberedelsen av sidan tog: 182,29 ms.