animal reproduction
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
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ANIMAL ANIMAL REPRODUCTIOREPRODUCTIO
NNAdvanced Animal ScienceAdvanced Animal Science
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Male AnatomyMale AnatomyTerms to knowTerms to know
Seminiferous Seminiferous TubulesTubules
Interstitial CellsInterstitial Cells SpermSperm TestesTestes EjaculateEjaculate
ScrotumScrotum EpididymisEpididymis UrethraUrethra PenisPenis TestosteronTestosteron
ee
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Terms:Terms: Sterile: can’t produce live spermSterile: can’t produce live sperm Ridgeling male in which neither testicle Ridgeling male in which neither testicle
descends from the body cavity (hereditary descends from the body cavity (hereditary trait)trait)
Cryptorchidism: one testicle does not Cryptorchidism: one testicle does not descend from the bodydescend from the body
Sheath: tubular fold of skin that houses Sheath: tubular fold of skin that houses the penisthe penis
Septum: divides the two sacs of the Septum: divides the two sacs of the scrotumscrotum
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Spermatic cord: house the vas Spermatic cord: house the vas deferens. What is cut during deferens. What is cut during castration.castration.
Testosterone: develops and Testosterone: develops and maintains accessory sex glands; maintains accessory sex glands; stimulates secondary sexual stimulates secondary sexual characteristics; regulates sexual characteristics; regulates sexual behavior and sperm productionbehavior and sperm production
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Sigmoid Flexure: found in bulls, Sigmoid Flexure: found in bulls, rams, and boars. Extends the penis rams, and boars. Extends the penis from the sheathfrom the sheath
Retractor Penis Muscle: helps retract Retractor Penis Muscle: helps retract the penis back into the sheaththe penis back into the sheath
Penis: deposits the semen with in the Penis: deposits the semen with in the female reproductive tractfemale reproductive tract
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Male Male AnatoAnato
mymy
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Male Poultry TermsMale Poultry Terms Vas Deferens: carry the seminal fluid and Vas Deferens: carry the seminal fluid and
sperm cells to the cloacasperm cells to the cloaca Cloaca: the enlarged part where the large Cloaca: the enlarged part where the large
intestine joins the end of the alimentary intestine joins the end of the alimentary canalcanal
Alimentary canal: the food-carrying Alimentary canal: the food-carrying passage that starts at the mouth and ends passage that starts at the mouth and ends at the ventat the vent
Papilla: the organ in the wall of the cloaca Papilla: the organ in the wall of the cloaca that puts the sperm cells into the hen’s that puts the sperm cells into the hen’s reproductive tractreproductive tract
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Four influences on sperm Four influences on sperm production:production:
1.1. Frequency of ejaculationFrequency of ejaculation2.2. Hours of light in a dayHours of light in a day3.3. Age Age 4.4. Testicle sizeTesticle size
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Female AnatomyFemale AnatomyTerms to knowTerms to know
OvariesOvaries EstrogenEstrogen ProgresteroneProgresterone FollicleFollicle OvulationOvulation CervixCervix
OvumOvum UterusUterus OviductsOviducts
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Placenta: attached to the Placenta: attached to the endometrial lining of the uterus by endometrial lining of the uterus by tons of tiny villi; transfers blood, tons of tiny villi; transfers blood, oxygen, and nutrition to the unborn oxygen, and nutrition to the unborn babybaby
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FemalFemale e
AnatoAnatomymy
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Reproductive Reproductive ProcessProcess
Terms to knowTerms to know EstrousEstrous• MetestrusMetestrus• ProestrusProestrus• EstrusEstrus• DiestrusDiestrus
abcabc
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Other Repro HormonesOther Repro Hormones Oxytocin: stimulates uterine Oxytocin: stimulates uterine
contractions and milk let downcontractions and milk let down Prolactin: promotes lactation and Prolactin: promotes lactation and
stimulates the CLstimulates the CL Estrogen: promotes female sexual Estrogen: promotes female sexual
behavior; stimulates sexual behavior; stimulates sexual characteristics; growth of characteristics; growth of reproductive tract; mammary reproductive tract; mammary growth; feedback controlgrowth; feedback control
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