直肠

When epitheliocytes and cloaca membrane extended ventrally, dorsal membrane ruptured, leaving anorectum connected to the outside.

Van der Putte认为肛门直肠发育主要因素在于背侧泄殖腔膜向尾沟移动这一过程，而没有观察到尿直肠隔与泄殖腔膜融合。

Embryonic development: During normal cloaca development process in rats, before gestational days 15, the urorectal septum developed and clearly demarcated the boundaries of the future rectum dorsally and urogenital sinus ventrally.

结果 ①胚胎发育：泄殖腔发育过程中，胎龄15天前的正常鼠胚，尿直肠隔将泄殖腔分为腹侧的尿生殖窦和背侧的直肠两部分，二者共同相通于泄殖腔管。

It is suggested that the metabolism of heterocyclic amines generated from fried fish may be altered by genetic variability of NAT2. The rapid acetylator would increase the heterocyclic amines from pre-carcinogen to active formation.

NAT2多态性与吸烟有交互作用，特别是野生纯合型与吸烟交互作用可使直肠腺瘤复发危险度上升到22.75(95％CI 2.11-244.86，P＝0.007)，其机制可能为NAT2酶可能参与了烟草中产生的多环芳烃致癌物，从而涉及直肠腺瘤发生。

Colonic adenomatous polyp is one of the high risk factors of colorectal tumors.

结直肠腺瘤性息肉是结直肠肿瘤的高危因素。

Transrectal ultrasound guided prostatic nerve blockade is superior to the intrarectal lidocaine gel during transrectal prostate biopsy in anes thesia for routine administration in all patients during this procedure.

经直肠超声引导前列腺神经阻滞术的镇痛疗效明显优于直肠内灌注2%利多卡因凝胶，值得临床推广应用。

RESULTS: Swelling of the lymph nodes was the first clinical manifestation of angiosarcoma of the rectum.

结果： 累及直肠的血管肉瘤可以首先累及外膜或者先侵犯直肠黏膜。

At present, many studies show it is feasible to improve anorectal function after anterior resection by surgical technique.

目前的研究表明，通过手术方式的改进在一定程度上可改善直肠前切除术后肛门直肠功能。

MethodsThe clinical characteristics of 6 cases in our hospital and 350 cases in documents of anorectal malignant melanoma were retrospectively analyzed.

方法对我院收治的6例直肠肛管恶性黑色素瘤及复习文献报告350例直肠肛管恶性黑色素瘤的临床病理特点进行回顾分析。

This is not a fatal disease, however, it may lead to serious complications such as chronic cystitis, urolithiasis, or rectal abscess formation. These foreign bodies were inserted for autoerotic or unknown reasons by patients.

虽然膀胱异物并不会造成患者的死亡，但是却会引起严重并发症如膀胱炎、结石等，甚至有些异物还会由膀胱较弱的地方穿出膀胱至直肠或腹腔内，引起直肠脓肿或急性腹症。

Fusion of the URS with the cloacal membrane is essential for the separation of rectum from bladder.

尿直肠隔与泄殖腔膜融合是直肠和膀胱分离的决定因素。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。