cloaca
英
美
n. 下水道，阴沟，泄殖腔
复数：cloacas
COCA.45064
英英释义
noun
- a waste pipe that carries away sewage or surface water
- (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
- IBD is the unique structure of birds at the top after the cloaca, the wall full of lymphoid tissue.
法氏囊是鸟类特有的结构，位于泄殖腔后上方，囊壁充满淋巴组织。 - 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。 - 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 - For the time being, the NDV detection of CIQ includes cloaca tampon separate virus, ELISA, HI and RT-PCR is trying now.
目前我国出入境检疫中对新城疫病毒的检测方法主要有泻殖腔棉拭子样品病毒分离鉴定、HI和ELISA，RT-PCR检测技术正在试用之中。 - Objective: To observe the distribution of nerves containing neuropeptide Y ( NPY) and substance P ( SP) in cloaca wall of Alligator sinensis.
目的：观察含神经肽Y（NPY）、P物质（SP）神经在扬子鳄泄殖腔壁内的分布情况。 - Nocens invaded posterior jejunum, ileum, ceca, rectum and cloaca. Developmental stages were localized within the epithelial cells of villi and crypts and in lamina propria.
nocens寄生于空肠后部、回肠、盲肠、直肠和泄殖腔的绒毛和肠腺上皮细胞及固有膜中。 - 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。 - 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。 - 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。 - 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。