external cervical orifice子宫颈外口

external urethral orifice尿道外口

external urethal orifice尿道外器

cyst of external urethral orifice外尿道口囊肿

external grinding orifice of urethra尿道外口

external orifice of urethra[解剖] 尿道外口

external orifice male urethra男性尿道外口

external orifice stricture of urethra尿道外口狭窄

external orifice of female urethra女尿道外口