Noun:

1. any of several veins draining the walls of the anal canal and rectum

rectally直肠给药rectaladj.直肠的rectal neoplasm直肠肿瘤rectal perfusion直肠灌注rectal sphinctor直肠括约肌rectal carcinoid直肠类癌rectal sphincter希尔特尔氏括约肌, 直肠括约肌rectal carcinoma直肠癌rectal palpation直肠检查Rectal submucosa直肠粘膜下层rectal retractor直肠牵开器rectal plication直肠折叠术