小儿输尿管、膀胱和女性尿道年龄解剖学研究

ANATOMICAL OBSERVATION ON THE URETER,URINARY BLADDER AND FEMALE URETHRA OF CHILDREN

本文分６个年龄组对１８０具正常小儿尸体的输尿管、膀胱和女性尿道进行了观测，主要结果（１）输尿管腹段呈“Ｓ”型弯曲；（２）输尿管的起点分３型，以肾门型多见，占５０．１４％土２．６５％；（３）输尿管长度均为左侧长于右侧；（４）输尿管狭窄部位以小骨盆入口处为宽；（５）膀胱形状与其充盈度有关；（６）输尿管口至尿道内的距离以左、右两侧不等的占多数占７２．２２％±３．３４％；（７）女性尿道呈凹向前的弓形．

One hundred and eighty normal children’s cadavers have been divided into six agegroups,and the ureter,urinary bladder and female urethra observed and measured.The main re-sults are as follows:(l)The abdominal part of the ureter is tortuous as a“S”form.(2)The originof the ureter has three types and most are the form of renal hilus in 50.14%±2.65%cases.(3)The left ureter is longer than the right one in all cases.(4)Of the three constricted parts the sec- ond one(at the superior aperture of the lesser pelvis)is the widest.(5)The shape of the urinarybladder varies according to the amount of urine that it contains.(6)The distance from the orificeof ureter to the internal urethral orifice on the left is not equal to the right in most of the cases(72.22%土3.34%).(7)The female urethra is front concave arch-shaped.