Ductus deferens 1. Testicular part extends form the tail of epididymis to the superior extremity of testis 2. Spermatic part extends form superior extremity of testis to the superficial inguinal ring the place where the vasectomy is performed 3. Inguinal part extends form superficial to deep inguinal rings 4. Pelvic part crosses the obturator neurovascular bundle and the ureter to reach the base of bladder where it expands to form the am pulla ductus deferentis
Ductus deferens 1. Testicular part － extends form the tail of epididymis to the superior extremity of testis 2. Spermatic part － extends form superior extremity of testis to the superficial inguinal ring, the place where the vasectomy is performed 3. Inguinal part － extends form superficial to deep inguinal rings 4. Pelvic part － crosses the obturator neurovascular bundle and the ureter to reach the base of bladder, where it expands to form the ampulla ductus deferentis
Vasectomy Ductus deferens
Vasectomy
Spermatic cord Extends from the superior extremity of testis to the deep inguinal ring Contents of the spermatic cord o Ductus deferens o Testicular and deferential arteries a Pampiniform plexus o Nerves and lymphatics Vestige of vagina process Covering of the spermatic a Internal spermatic fascia n Cremaster o EXternal spermatic fascia
Spermatic cord ◼ Extends from the superior extremity of testis to the deep inguinal ring ◼ Contents of the spermatic cord ❑ Ductus deferens ❑ Testicular and deferential arteries ❑ Pampiniform plexus ❑ Nerves and lymphatics ❑ Vestige of vagina process ◼ Covering of the spermatic ❑ Internal spermatic fascia ❑ Cremaster ❑ External spermatic fascia
Ejaculatory duct Formed by union of distal portion ductus deferens and duct of seminal vesicle Passes through the upper part of prostate and opens into the prostatic part of urethra
Ejaculatory duct ◼ Formed by union of distal portion ductus deferens and duct of seminal vesicle ◼ Passes through the upper part of prostate and opens into the prostatic part of urethra
Seminal vesicle Paired sacculated, coiled glands Secrete part of seminal fluid Located on posterior surface of bladder, lateral to ampulla ductus deferentis
Seminal vesicle ◼ Paired sacculated, coiled glands ◼ Secrete part of seminal fluid ◼ Located on posterior surface of bladder, lateral to ampulla ductus deferentis