cloaca

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Related to cloacae: Enterobacter cloacae, avian cloaca

cloaca

 [klo-a´kah] (pl. cloa´cae) (L.)
1. a common passage for fecal, urinary, and reproductive discharge in most lower vertebrates.
2. in mammalian embryos, the terminal end of the hindgut before division into rectum, bladder, and the primordia of the reproductive organs.
3. an opening in the covering or sheath of a necrosed bone. adj., adj cloa´cal.

clo·a·ca

(klō-ā'kă),
1. In early embryos, the endodermally lined chamber into which the hindgut and allantois empty.
2. In birds and monotremes, the common chamber into which open the hindgut, bladder, and genital ducts.
[L. sewer]

cloaca

/clo·a·ca/ (klo-a´kah) pl. cloa´cae   [L.]
1. a common passage for fecal, urinary, and reproductive discharge in most lower vertebrates.
2. the terminal end of the hindgut before division into rectum, bladder, and genital primordia in mammalian embryos.
3. an opening in the involucrum of a necrosed bone.cloa´cal

cloaca

(klō-ā′kə)
n. pl. cloa·cae (-sē′)
Zoology
a. The common cavity that serves as the opening for the intestinal, genital, and urinary tracts in many vertebrates, including amphibians, reptiles, birds, monotremes, and some fishes.
b. The posterior part of the intestinal tract in various invertebrates.

clo·a′cal (-kəl) adj.

cloaca

[klō·ā′kə] pl. cloacae
Etymology: L, sewer
1 (in embryology) the end of the hindgut before the developmental division into the rectum, the bladder, and the primitive genital structures.
2 (in pathology) an opening into the sheath of tissue around a necrotic bone.

cloaca

Embryology
The terminal hindgut before it divides into the rectum, bladder and genital primordia.
 
Pathology
An obsolete term for an opening in the involucrum of necrotic bone.
 
Zoology
A common conduit in most lower vertebrates for faecal, urinary and reproductive discharge.

clo·a·ca

, pl. cloacae (klō-ā'kă, -sē)
1. In early embryos, the endodermally lined chamber into which the hindgut and allantois empty.
2. In birds and monotremes, the common chamber into which the hindgut, bladder, and genital ducts empty.
[L. sewer]

cloaca

The combined urinary and faecal opening in the embryo before the two become separated. The term derives from the Latin cloaca a sewer.

cloaca

the terminal part of the gut system of most vertebrates (except higher mammals) into which the ducts from the kidney and reproductive system open. In these types there is thus only one posterior aperture to the body as compared with two in mammals, the anus and the opening of the urinogenital system. In some vertebrates, such as birds, the cloaca is reversible and forms a penis-like structure in the males during copulation.

cloaca

perforation of bone cortex in osteomyelitis, through which pus escapes, to form a Brodie's abscess

cloaca

pl. cloacae [L.]
1. a common passage for fecal, urinary and reproductive discharge in most lower vertebrates.
2. the terminal end of the hindgut before division into rectum, bladder and genital primordia in mammalian embryos.
3. an opening in the involucrum of a necrosed bone.

avian cloaca
in birds the cloaca is divided into three poorly defined compartments: a coprodeum or a continuation of the rectum, a urodeum into which the urogenital ducts open (in the female the left genital duct is the oviduct) and the proctodeum which carries the cloacal bursa and the proctodeal glands.
common cloaca
the urorectal septum fails to develop; defecation and urination share a common cavity. Seen in Manx cat.
References in periodicals archive ?
Epidemiological fingerprinting of Enterobacter cloacae by small-fragment restriction endonuclease analysis and pulsed-field gel electrophoresis of genomic restriction fragments.
cloacae DMST 21394 (CREC) was obtained from department of medical sciences, ministry of public health, Thailand.
Probabilities of attaining the pharmacodynamic target (30% T > MIC) in peritoneal fluid (PF) against Gram-negative clinical isolates (Escherichia coli, Klebsiella species, Pseudomonas aeruginosa, Enterobacter cloacae and Proteus mirabilis) using different biapenem regimens (0.
cloacae and stored in sealed plastic vials without preservative at 22 [degrees]C for 5 days.
Bone cultures grew E faecium (sensitive to vancomycin, tetracycline, ampicillin), coagulase-negative staphylococcus (sensitive to vancomycin, tetracycline), and Enterobacter cloacae (sensitive to imipenem, amikacin).
MR imaging findings that suggest the presence of active chronic osteomyelitis include sequestra, cloacae, abscesses, and subperiosteal fluid collection.
These drugs select for resistant bacteria, including Enterococcus faecalis and the very dangerous Enterobacter cloacae, said Dr.
Cloacae were embedded in paraffin, sectioned at 10 [micro]m, stained by the Mallory method, and observed under a Zeiss Axioskop microscope (Atto Instruments, Thornwood, NY), interfaced with a Macintosh computer (Apple Computer, Inc.
The scientists' main recruits against the damaging fungi are strains of the bacteria Enterobacter cloacae and Burkholderia cepacia.
Additionally, Enterobacter cloacae OS2A and CRFY2, Serratia marcescens CR2B, and Erwinia americana CRFW all possessed the larger size class of element.
Investigation disclosed that the ancient bacteria were Enterobacter cloacae, a distant ancestor of microbes that aid digestion in many animals today.
is alerting the public against applying the company's TMM brand Fortified Mineral Neutralizer and Ultra Fortified Mineral Neutralizer to the eyes because these products may be contaminated with Pseudomonas aeruginosa, Pseudomonas flourescens/putida and Enterobacter cloacae - bacteria that, if applied to the eyes, might lead to serious injury, including possible blindness.