361. Male Perineal Spaces 362. Prostate and Seminal Vesicles 363. Urethra 364. Descent of Testis 365. Scrotum and Contents 366. Homologues of External Genitalia 367. Homologues of Internal Genitalia 368. Testis, Epididymis, and Ductus Deferens 369. Rectum in Situ: Female and Male 370. Ischioanal Fossae 371. Rectum and Anal Canal 372. Anorectal Musculature