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cloaca    
n. 阴沟

阴沟

cloaca
n 1: (zoology) the cavity (in birds, reptiles, amphibians, most
fish, and monotremes but not mammals) at the end of the
digestive tract into which the intestinal, genital, and
urinary tracts open
2: a waste pipe that carries away sewage or surface water [synonym:
{sewer}, {sewerage}, {cloaca}]


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  • Cloaca - Wikipedia
    Cloaca of a red-tailed hawk A cloaca ( kloʊˈeɪkə ⓘ kloh-AY-kə; pl cloacae, kloʊˈeɪki, - si kloh-AY-kee, -see) or vent is the rear orifice that serves as the only opening for the digestive (rectum), reproductive, and urinary tracts (if present) of many vertebrate animals All amphibians, reptiles, birds, cartilaginous fish [1] and a few mammals (monotremes, afrosoricids, and
  • Cloaca | Mammals, Birds, Reptiles | Britannica
    Cloaca, (Latin: “sewer”), in vertebrates, common chamber and outlet into which the intestinal, urinary, and genital tracts open It is present in amphibians, reptiles, birds, elasmobranch fishes (such as sharks), and monotremes A cloaca is not present in placental mammals or in most bony fishes
  • Cloaca: The Single Opening in Animals, Plus Human Implications
    A cloaca is a single bodily opening in many animals for excretion and reproduction In rare human cases, failure to separate during development leads to complications
  • What is a cloaca and what is its purpose? - iere. org
    What is a Cloaca and What is Its Purpose? The cloaca is a single posterior opening serving as the sole exit point for the digestive, urinary, and reproductive tracts in many vertebrates, including birds, reptiles, amphibians, and some fish What is its purpose? Simply put, it’s a multi-purpose exit for waste and reproductive products
  • Cloaca (embryology) - Wikipedia
    The cloaca (pl : cloacae) is a structure in the development of the urinary and reproductive organs The hind-gut is at first prolonged backward into the body-stalk as the tube of the allantois; but, with the growth and flexure of the tail-end of the embryo, the body-stalk, with its contained allantoic tube, is carried forward to the ventral aspect of the body, and consequently a bend is formed
  • CLOACA Definition Meaning - Merriam-Webster
    The meaning of CLOACA is sewer [New Latin, from Latin] : the common chamber into which the intestinal and urogenital tracts discharge especially in monotreme mammals, birds, reptiles, amphibians, and elasmobranch fishes
  • Cloacal Malformations: Causes, Diagnosis Treatment
    Cloacal malformations are when a baby’s vagina, urinary tract and anus fuse together during fetal development instead of being separate Surgery fixes it
  • Cloaca - an overview | ScienceDirect Topics
    Cloaca is defined as a common chamber in some organisms, including human embryos, where the digestive, urinary, and reproductive tracts discharge their contents In humans, a cloaca is present up to 4–6 weeks of gestation before it partitions into the urogenital sinus and the rectum
  • Cloaca - Simple English Wikipedia, the free encyclopedia
    Cloaca The cloaca is a common rear opening in land vertebrates Through this opening, the animals expel urine and faeces, and carry out reproduction The cloaca is a primitive or 'basal' feature of tetrapods All amphibia, all sauropsids (reptiles and birds) and even monotreme mammals have a cloaca





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