cloaca

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Related to cloacae: Enterobacter cloacae, avian cloaca

cloaca

(klōā`kə), in biology, enlarged posterior end of the digestive tract of some animals. The cloaca, from the Latin word for sewer, is a single chamber into which pass solid and liquid waste materials as well as the products of the reproductive organs, the gametes. Cloacas are found in amphibians, reptiles, birds, and lower mammals; higher mammals have a separate rectal outlet, the anus. The term cloaca is also used for analogous chambers in many invertebrates, such as worms of the phylum NematodaNematoda
, phylum consisting of about 12,000 known species, and many more predicted species, of worms (commonly known as roundworms or threadworms). Nematodes live in the soil and other terrestrial habitats as well as in freshwater and marine environments; some live on the deep
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.

Cloaca

 

the broadened extremity of the hindgut of some vertebrate animals. The wall of the cloaca is covered with a many-layered epithelium. The ureter, the genital ducts (sperm ducts or oviducts), and the urinary bladder open into the cloaca. It is found in certain cyclostomes (hagfish) and fishes (sharks, skates, dipnoans and pipefish) and in all amphibians, reptiles, and birds. The cloaca is found in mammals of the subclass Prototheria. In other mammals a cloaca is found only in the early embryonic stage of development; it subsequently divides into the urogenital sinus and the terminal part of the rectum, which have separate urogenital and anal openings. In amphibians the urinary bladder is formed from an evagination of the abdominal wall of the cloaca. Allantoides appear in the embryo of amniotes.

cloaca

[klō′ā·kə]
(invertebrate zoology)
The chamber which functions as a respiratory, excretory, and reproductive duct in certain invertebrates.
(vertebrate zoology)
The chamber which receives the discharges of the intestine, urinary tract, and reproductive canals in monotremes, amphibians, birds, reptiles, and many fish.

cloaca

An underground conduit for drainage; a sewer, esp. in ancient Rome.

cloaca

a cavity in the pelvic region of most vertebrates, except higher mammals, and certain invertebrates, into which the alimentary canal and the genital and urinary ducts open
References in periodicals archive ?
cloacae produjo una colonia grande, mucosa, aplanada, catalasa positiva con crecimiento rapido y tendencia al crecimiento confluente, y arginina, ornitina y Voges/Proskauer positivos (API 20E).
cloacae produces endotoxins which can penetrate into lungs causing fever, coughing, difficulty breathing and wheezing.
brasiliense Enterobacter cloacae Enc19 LN851548 tuber Enterobacter cloacae Enc92 HF674994 tuber Enterobacter cloacae Enc20 LN851551 tuber Dickeya chrysanthemi Dch21 HF569035 Stem Control Bacterial isolates Code cultivar Disease index Pectobacterium cartovorum Pcc96 -- 29.
oxytoca 5 - Citrobacter koseri 2 - Enterobacter cloacae 12 - 5 - 3 + Enterobacter aerogenes 5 - Citrobacter braaki 1 - C.
cloacae that cause discolored and flaccid in bulbs.
the nine patients at the hemodialysis center who had Enterobacter cloacae BSIs) were more likely than control-patients to have received dialysis on a machine that had at least one incompetent valve on the WHO waste drain line (all seven case-dialysis sessions versus 145 [53%] of 272 control-dialysis sessions; odds ratio: undefined; p=0.
cloacae isolates from documented cases of CRE infection at the hospital during 2010 were analyzed for comparison.
The bacterium was identified as Enterobacter cloacae by biochemical assays, but 16S rRNA gene sequence analysis did not allow discrimination between E.
Between October 1970 and March 1, 1971, eight United States Hospitals in seven states experienced 150 bacteremias caused by Enterobacter cloacae or Gram-negative organisms of the Erwinia group.
The US Food and Drug Administration has approved Vabomere (meropenem and vaborbactam) for injection for the treatment of adult patients with complicated urinary tract infections, including pyelonephritis, caused by designated susceptible Enterobacteriaceae Escherichia coli, Klebsiella pneumoniae and Enterobacter cloacae species complex, US-based biopharmaceutical company The Medicines Company (NASDAQ: MDCO) said.
pneumoniae (1 isolate in August 2012), Providencia rettgeri (1 isolate in October 2012), Enterobacter cloacae (1 isolate in November 2012), and Raoultella ornithinolytica (1 isolate in March 2013).