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THE REPRODuctive system

THE REPRODuctive system. Natalia Fiuza Fern ández 3ºA Cristina Cotilla Paredes 3ºA. What is reproduction ?.

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THE REPRODuctive system

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  1. THE REPRODuctivesystem Natalia Fiuza Fernández 3ºA Cristina Cotilla Paredes 3ºA

  2. Whatisreproduction? Reproductionistheprocessbywhich new organisms are generated.  Itisthemechanism of speciescontinuation.  There are twomeans of reproducing: asexual and sexual reproduction.

  3. Malereproductivesystem • Thepurpose of theorgans of themale reproductive system is to perform the following functions: • To produce, maintain, and transportsperm (the male reproductive cells) and protective fluid (semen) • Todischargespermwithinthefemalereproductivetractduring sex • To produce and secrete male sex hormones responsibleformaintainingthemalereproductivesystem

  4. organs • Penis:istheorganthatmen use todeposit semen inside a woman’sbodyduring sexual intercourse. Itcontainstwospongymasses of erectiletissue, oneoneachside, abovetheurethra. Theurethraissurroundedbythe corpus spongiosum, whichwidens at theendtotheglands. Theglandsiscoveredbysomeskin, known as theforeskin. • Testicles: there are two of them. Theycontainmanyseminiferoustubules: coiledtubescontainingthecellsthat produce sperm. In betweenthesetubules are cellsthat produce male sex hormones. Thetesticles are locatedoutsidethe abdominal cavity, inside a skinsaccalledthescrotum.

  5. Organs • Otherglands: thesegland secrete substancesthat mix withspermto produce a fluid called semen. -Seminal vesicles: secrete many of thesubstancesfound in semen. -Prostate: secretes substancesthatprotectsperm. -Cowper’sgland: secrete a lubricantthatfacilitates sexual intercourse. • Repreoductiveducts: -Epididymis. Spermmaturehere, and thentravel yo the vas deferens. -Vas deferens. Spermtraveltotheurethrathroughthisduct. -Urethra. Spermpassthroughherebeforeleavingthebodythroughthepenis. Urineleavesthebodythroughthisduct.

  6. Femalereproductivesystem • is a series of organsprimarilylocatedinside of thebody and aroundthepelvic region of a female that contribute towards the reproductive process. The human female reproductive system contains three main parts: the vagina, which leads from the vulva, the vaginal opening, to the uterus; the uterus, which holds the developing fetus; and the ovaries, which produce the female's ova. The breasts are involved during the parenting stage of reproduction, but in most classifications they are not considered to be part of the female reproductive system.

  7. Organs • Ovaries: there are two of them. There are found in the abdominal cavity (oneovaryoneachside). Theexternalpart of eachovaryiscalledthecortex and isfilledwithovarianfollicles. Eachfolliclecontainsonedevelopingeggsurroundedbyothercells. Thecloserthefollicles are totheovarysurface, thebiggerthey are. Thoseclosesttothesurface are calledGraafianfollicles. Eachonecontains a matureeggthatisreadyto be released. Theovariesalso produce female sex hormones. • Reproductiveductsplay a role in fertilisation and gestation: -Fallopiantubes. Thesetwotubescollectthematureeggsreleasedbytheovaries. Fertilisationnormallyhappenshere. -Uterus. Gestationoccurshere. Thewall of theuterus has a thick muscular layerlinedwith a mucousmembrane.

  8. organs -Vagina.Thiselastictract has glandsthat secrete lubricantstomakeiteasierforthepenisto be inserted. -Vulva. Thisistheexternalfemale sex organ, made of lip-likefolds of skinoneachside of the vaginal opening: first, the labia minora, and them, the labia majora. In betweenthemistheclitores, a sensitiveorganwitherectiletissue similar tothat of thepenis.

  9. Interactionbetweenotherbodysystems • In males, theexcretory (orurinary) systeminteractswiththereproductivesystembecauseboth semen and urineleavethebodythroughthesametract. • Thereproductivesystemalsoisincrediblyinvolvedwiththeendocrinesystem. Theendocrinesystemstimulatesthedevelopment of sex organs, thedevelopment of gametes, menstruation, nourishment of thezygote, amongmanyotherthings.

  10. HIV/AIDS Human immunodeficiency virus infection/acquiredimmunodeficiencysyndromeis a desease of the human immunesystemcausedbyinfectionwith human immunodeficiency virus (HIV). Ittransmittedprimarilyviaunprotected sexual intercourse, contaminatedbloodtransfusions, hypodermicneedles, and frommothertochildduringpregnancy, deliveryorbreastfeeding.

  11. What are thesymtoms? • Earlystagepf HIV: • Fever • Swollenglands • Sorethroat • Rash • Fatigue • Muscle and jointaches and pains • Headache

  12. What are thesymtoms? • Pregressionto AIDS: -Rapid weightloss -Recurringfeverorprofusenightsweats -Extreme and unexplainedtiredness -Prolongedswelling of thelymphglands in thearmpits, groin, orneck -Diarrheathatlastsfor more than a week -Sores of themouth, anus, orgenitals -Pneumonia -Red, brown, pink, orpurplishblotchesonorundertheskinorinsidethemouth, nose, oreyelids -Memoryloss, depression, and otherneurologicdisorders

  13. Interestingfacts • Fallopiantubes are no widerthanthe head of a pin. • Thefemale human bodyiscapable of givingbirthto 35 children in onelifetime. • Thelifespan of an ova isabout 12 – 24 hours.

  14. Contraceptivemethods • Condoms • Cervical cap • Birth control pills

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