Male genital tract Dr. Majid. A.Talal

* Male reproductive system consist of: 1- scrotum 2- Testes & epididymis 3- Spermatic cord 4- deferent duct 5- penis 6- accessory genital gland

1- Scrotum consist of varies layers a- Skin b- Tunica dartos c- external spermatic fascia d- Cremaster muscle & fascia e- Internal spermatic fascia d- Tunica vaginalis visceral layer parietal layer

Testes,Testis or Testicle * Type of testes 1- Testicond (intra abdominal), e.g.: seal, bird, whales, elephant & hyraxes. 2- (Scrotal testes) extra abdominal a- inguinal testes e.g. : Stallion, Ox, Ram B-Perineum testes e. G. Dog, Camel, Pig

* Structure of testes

الفص الأمامي للغدة النخامية خلايا Lydig وعاء دموي التأثيرات الاندروجينية والبنائية الانهبين يحفز تكوين البروتين الرابط للاندروجينات نبيب منوي

* Trabeculae testicular septa * Semineferous tubules * Rete testes * Mediastinum * Spermatozoa

* Descent (descend) of testes * Gubernaculum * cryptochidism

الفص الأمامي للغدة النخامية خلايا Lydig وعاء دموي التأثيرات الاندروجينية والبنائية الانهبين يحفز تكوين البروتين الرابط للاندروجينات نبيب منوي

Epididymis 1- head caput 2- body corpus 3- tail cauda

Spermatic cord Mesorchium Mesoductus Pampniform plexus

Male copulatory organ Penis : male copulatory organ 1- root 2- body or shaft 3- glans penis Prepuce inner lamina & outer lamina ( inner lamina absent in rumina: the cutaneous sheath around the f ree part of the penis in the quiescent state it has nt ) Preputial orifice: external opening of the prepuce to the out side Preputial cavity: the space BW prepuce & the glans in the quiescent state

Structure of penis 1- corpus cavernosum penis (cavernosum body) paired of erectile tissue with venous space separated by C. T. ( septa), it consist of greater part of penis, located dorsally surrounded by fibrous capsul with elastic fiber termed tunica albugina 2- corpus spongiosum penis this part directed ventrally to the cavernosum body

Muscles of penis 1- Ischio cavernosum mus. 2- Bulbo spongiosum mus. 3- Retractor mus. Type of penis 1- musclo cavernosum penis 2- fibro elastic penis