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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 ( kloʊˈeɪsi kloh-AY-see or kloʊˈeɪki kloh-AY-kee), 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
  • 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
  • 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
  • Why some animals have just one hole for everything – from pooping to . . .
    A cloaca is a single opening in the bodies of birds, reptiles, amphibians, elasmobranch fish (including sharks) and monotremes (platypuses and echidnas), which serves as a combined digestive, urinary and reproductive tract
  • CLOACA Definition Meaning - Merriam-Webster
    The meaning of CLOACA is sewer The team narrowed down the DNA responsible for the cloaca and showed that there were equivalent regions in mice, as well as fish that are more closely related to limbed vertebrates, like the gar —
  • What is Cloaca? And Why Do Most Animals Have it Except Humans?
    Cloacas are normal in most animals But when humans have cloacal malformation, it poses serious health risks
  • Cloacal Malformation (Persistent Cloaca): Symptoms, Diagnosis . . .
    Cloacal malformation, sometimes called persistent cloaca, is found in female children where the rectum, vagina and urethra are fused together, creating a single common channel In developing fetuses, these openings are joined in a sac known as the cloaca At birth, these openings are normally separate
  • What Is a Cloaca? [Animals That Have One Explained]
    A cloaca is a single, multipurpose posterior opening that serves as the common exit for the digestive, urinary, and reproductive tracts in various vertebrates Found in all birds, reptiles, amphibians, and a unique group of mammals, this anatomical structure allows for the streamlined expulsion of waste and the transfer of gametes through one centralized orifice





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