About the ureters, which of the following descriptions are correct?
A.The paired ureters convey the urine from the renal pelvises to the urinary bladder. B.The ureter can be divided into abdominal portion, pelvic portion and intramural portion (壁内部). C.In the female, about 2 cm lateral to the cervix of uterus (子宫颈), the ureter is crossed anteriorly D.The intramural portion is the shortest part of the ureter, and passes through the wall of the urinar E.Each ureter has two normal constrictions正确答案ABCD
