NTRODUCTION
Organismscreatedescendants.
Organismsperpetuatethemselves.
Differentiatelivingthingsfromnonlivingthings.
Continuationofspecies.
Reproduction?
Inhumansexualreproductionmale,reproductiveorgansorgenitals,arebothinsideandoutside
thepelvis.
Infemale,reproductiveorgansareentirelywithinthepelvis.Amaleandafemaleofthesamespeciesarerequiredtocopulateand
surviveintheconstantlychangingenvironment.
geneticallydifferentfromhisparents.
Itreliesonmeiosistoshufflethegenes,sothatnewcombinationsof
Themalereproductivesystemproduces,sustains,anddeliverssperm
Italsosupportsthedevelopmentofanoffspring(gestation)andgives
cells(spermatozoa)tothefemalereproductivetract.
genesoccurineachgeneration,allowingsomeoftheoffspringto
cells(oocytes)tobefertilizedbysperm.
combinetheirgenesinordertoproduceanewindividualwhois
Thefemalereproductivesystemproduces,sustains,andallowsegg
birthtoanewindividual(parturition).MALE REPRODUCTIVE ORGAN
Accessory sex organs (ducts and glands)
Primary sex organs (testes)
Male reproductive organs include:
Ducts -epididymis, ductus deferens, ejaculatory duct and urethra.
Glands -seminal vesicles, prostate gland, and bulbourethral glaTESTES(singular,testis)
Eachtestiscontainsabout250functionalunitscalledlobules;each
occurs.
Developedinamalefetusnearthekidneys,anddescendintothe
tunicaalbuginea.
Sexorganthatproducessperminaprocesscalledspermatogenesis,
scrotumabout2monthsbeforebirth.
Allseminiferoustubulesinatestisconvergeandformachannel
lobulecontainsabout4seminiferoustubuleswherespermatogenesis
andmalesexhormones(testosterone).
Eachtestisisenclosedbyalayeroffibrousconnectivetissuecalled
calledretetestis.