cloaca

英

美

n.  下水道，阴沟，泄殖腔

复数：cloacas　

医学

COCA.45064

英英释义

noun

• a waste pipe that carries away sewage or surface water
  Synonym:sewersewerage
• (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

双语例句

• In the transverse plane, entering the S_3& S_8spi hal cord, the labeled central processes of primary afferent neurons of the cloaca first appeared in the dorsolateral tract, and then divided into medial and lateral parts.
  脊髓横断面观，被标记的初级传入神经元中枢突呈束状经背根外侧部进入S3&S8髓节的背外侧束，而后分成内外两部。
• The liquid excreted through the urethra or cloaca.
  通过尿道或泄殖腔排泄出的液体。
• The digestive tracts were divided into cavum oris, esophagus, ventriculus, duodenum, jejunum, ileum, rectum and cloaca.
  结果表明：虎纹蛙消化道分为口咽腔、食道、胃、十二指肠、空肠、回肠、直肠和泄殖腔。
• The breathing film was made up of endothelial and endothelial basement membrane. The seawater in respiratory trees through cloaca into center antrum and blood in haemocoel accomplished respiration via this gas-blood barrier.
  内皮层与内皮基膜构成呼吸树的呼吸膜，由泄殖腔进入呼吸树中央腔的海水和呼吸树血腔中的血液经此气-血屏障进行气体交换，完成呼吸作用。
• Distribution of neuropeptide Y and substance P in cloaca wall of Alligator sinensis
  神经肽Y、P物质在扬子鳄泄殖腔壁内的分布
• The mucosal epithelium of rectum transforms into stratified squamous epithelium abruptly at the end of the rectum. The boundary line between rectum and cloaca was very distinct.
  直肠黏膜上皮在直肠末端突然转变为泄殖腔的复层扁平上皮，两者之间界线明显。
• NDV could be detected by RT-PCR in the tracheas of the artificially infected chicken next day, then in the cloaca, spleen and kidney.
  利用RT-PCR对NDV人工感染鸡最早可于攻毒后第2天从病鸡气管中检测到NDV，其次为泄殖腔和脾、肾。
• This characteristic was similar to that of Clostridium butyricum but quite different from Enterobacter cloaca with Coli-type hydrogen-producing pathway.
  这一性质与梭菌型产氢途径的丁酸梭菌表现出相似的规律，完全区别于阴沟肠杆菌铁依赖型的产氢机制。
• Results: At 18th day of incubation, ureteric bud from cloaca grew into metanephrogenic tissue which produced many metanephrogenic vesicles.
  结果：孵育第18天，从泄殖腔附近发出的输尿管芽向生后肾组织侵入生长，生后肾组织产生许多生后肾小泡。
• The long, narrow duct that conveys urine from the kidney to the urinary bladder or cloaca.
  输尿管把尿液从肾脏中传输到膀胱或排泄腔的长而窄的导管。