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ANIMAL REPRODUCTION

ANIMAL REPRODUCTION. Advanced Animal Science. Seminiferous Tubules Interstitial Cells Sperm Testes Ejaculate. Scrotum Epididymis Urethra Penis Testosterone. Male Anatomy Terms to know. Terms:. Sterile: can’t produce live sperm

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ANIMAL REPRODUCTION

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  1. ANIMAL REPRODUCTION Advanced Animal Science

  2. Seminiferous Tubules Interstitial Cells Sperm Testes Ejaculate Scrotum Epididymis Urethra Penis Testosterone Male AnatomyTerms to know

  3. Terms: • Sterile: can’t produce live sperm • Ridgeling male in which neither testicle descends from the body cavity (hereditary trait) • Cryptorchidism: one testicle does not descend from the body • Sheath: tubular fold of skin that houses the penis • Septum: divides the two sacs of the scrotum

  4. Spermatic cord: house the vas deferens. What is cut during castration. • Testosterone: develops and maintains accessory sex glands; stimulates secondary sexual characteristics; regulates sexual behavior and sperm production

  5. Sigmoid Flexure: found in bulls, rams, and boars. Extends the penis from the sheath • Retractor Penis Muscle: helps retract the penis back into the sheath • Penis: deposits the semen with in the female reproductive tract

  6. Male Anatomy

  7. Male Poultry Terms • Vas Deferens: carry the seminal fluid and sperm cells to the cloaca • Cloaca: the enlarged part where the large intestine joins the end of the alimentary canal • Alimentary canal: the food-carrying passage that starts at the mouth and ends at the vent • Papilla: the organ in the wall of the cloaca that puts the sperm cells into the hen’s reproductive tract

  8. Four influences on sperm production: • Frequency of ejaculation • Hours of light in a day • Age • Testicle size

  9. Ovaries Estrogen Progresterone Follicle Ovulation Cervix Ovum Uterus Oviducts Female AnatomyTerms to know

  10. Placenta: attached to the endometrial lining of the uterus by tons of tiny villi; transfers blood, oxygen, and nutrition to the unborn baby

  11. Female Anatomy

  12. Estrous Metestrus Proestrus Estrus Diestrus abc Reproductive ProcessTerms to know

  13. Other Repro Hormones • Oxytocin: stimulates uterine contractions and milk let down • Prolactin: promotes lactation and stimulates the CL • Estrogen: promotes female sexual behavior; stimulates sexual characteristics; growth of reproductive tract; mammary growth; feedback control

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