Name: _________________________________________ Date:_____________________ Anatomy of Reproduction Male Reproductive Organs: 1. Testicles- Sperm- Male sex cells - Testosterone- Causes the ______________ & _________________ of an animal to be masculine. 2. Epididymis- The cells enter the epididymis from the testicle to mature. 3. Scrotum4. Vas Deferens- a _____________________ _________ that carries the sperm containing fluid from each epididymis to the urethra. 5. Urethra- Large, _____________ _________ extending from the urinary bladder. Semen and urine move through the urethra to the end of the penis. 6. Seminal Vesicles- Open into the urethra. They produce a fluid… 7. Prostate gland- Produces a fluid that is mixed with the ____________ __________. 8. Cowper’s Gland- Produces a fluid that moves down the urethra ahead of the seminal fluid to _______ & _______________ the urethra. All of this mixed together is called ___________. 9. Penis- Deposits semen within the female reproductive system. The urethra is surrounded by spongy tissue that fills with blood when the male is sexually aroused. This causes an erection that is necessary for ________________ (mating). 10. Sigmoid flexure- (found in bulls, rams & boars) and the retractor muscle extend the penis from the __________. 11. SheathFemale Reproductive Organs: 12. Ovary13. Gamete is a sex cell that can unite with other sex cells. These are called _____or _______. Ovaries also produce ... Within each ovary there are tiny follicles. The eggs are produced in these follicles. 14. OviductsThey are close, but not attached to the ovaries. The funnel-shaped end of each oviduct is called the _____________________. At ovulation the follicle ruptures, releasing an egg that is caught by the infundibulum. 15. Uterus: _____________ ______________ consisting of the body, two uterine horns and the cervix. The fetus grows within the uterus, and that is where it remains until _______________(birth). 16. Cervix-Composed of _____________ _________ that is the gateway between the uterus and the vagina. 17. Vagina18. Vulva- External opening of the __________________ and ____________ systems. 19. Clitoris- Sensory and erectile organ of the female, located just inside the vulva. Produces sexual stimulation during copulation. Avian Male Reproductive System: 20. Male poultry have _____________, but they are located inside the body, opposed to the scrotum. 21. The _____ _______________ carry the seminal fluid & sperm cells to the Cloaca. 22. __________- Enlarged part where the large intestine joins the end of the alimentary canal. 23. ____________ ________- Food carrying passage that begins at the mouth and ends at the vent. 24. ___________- The organ in the wall of the cloaca that puts the sperm cells into the hens reproductive tract. Avian Female Reproductive Sytem: 25. The chicken does have two ovaries and two oviducts. Only the LEFT ovary & oviduct function. The right is obsolete. The OVA produced in the ovary turns into egg yolk. 26. The Oviduct has 5 parts. _________- Receives the yolk from the ovary. The sperm a chicken receives stays here. ____________- Secrets the thick white of the egg. It takes around 3 hours for the white to be placed around the yolk in the magnum. ____________- The yolk & white move here, two shell membranes are placed around the yolk & white. It takes 1.25 hours. __________- The thin white & outer shell are placed around the egg. It stays here for about 20 hours. ___________- From the uterus, the egg moves here. The egg stays here only a short time before it is laid. It takes about 25-27 hours to produce one egg. 27. How it happens: a. Male Papillae deposits sperm in the cloacal wall of his female. b. Sperm moves up the oviduct to the funnel, where it is fertilized. c. Sperm Cells remain the oviduct 2-3 weeks after mating. 28. The _______ provides nourishment, just like an umbilical cord in mammals. It also provides passive immunity, like colostrum. 29. The egg white is called an ________________. It serves as a shock absorber for the developing embryo.