Reproduction in Humans

Name: __________________ Topic: Reproduction in Humans LO:Identifyondiagrams,themalereproductivesystemandgivethefunctionsof:testes, scrotum, sperm ducts, prostate gland, urethra and penis Testes Producesspermsandmale sex hormone, testosterone Scrotum Keeps the testes outside the main body so that spermscan develop properly atlower temperature Sperm duct (vasdeferens) Carry sperms from testes to the urethra Prostate gland Produces alkaline, milky fluid that containsnutrientsandenzymeswhichnourish andactivates the spermsandhelps them to swim towards the egg.Urethra Passes the sperms out of the bodyPenis Erectile tissue, allowing it to enter and deposit sperms inthe vagina Concepts Summary NotesNan Hua High School Biology 1

Name: __________________ Topic: Reproduction in Humans LO:Identifyondiagrams,thefemalereproductivesystemandgivethefunctionsof: ovaries, oviducts, uterus, cervix and vagina Ovary Produceova/ eggsandfemale sex hormones, estrogenandprogesterone Oviduct ● Transports eggs to the uterus byperistalsisof themuscularwallandsweeping action of the cilia.● Site of fertilisation Uterus(womb) Site ofimplantation of embryoand fetus developmentduringpregnancyCervix Enlarges to allow passage of the fetus during birth Vagina Where semen is deposited during sexual intercourse; birth canal Concepts Summary NotesNan Hua High School Biology 2

Name: __________________ Topic: Reproduction in Humans LO:Brieflydescribethemenstrualcyclewithreferenceto thealternationofmenstruationandovulation,thenaturalvariationinitslength,andthefertileandinfertilephasesofthecyclewithreferencetotheeffectsofprogesteroneandestrogen only ● The average menstrual cycle is28 days.● The menstrual cycle can range from21 to 33 days. Fertile period● An egg can survive for 2 days, whereas sperms can live for 3 days.● Ovulation usually occurs on day 14.● Chance of getting pregnant is highest betweendays11 to 16.● The rest of the days make up the infertile period. Concepts Summary NotesNan Hua High School Biology 3

Name: __________________ Topic: Reproduction in Humans Day 1-5● Menstruation occurs● The first day of menstruation is the first day of the menstrual cycle● Duringmenstruation,theuterineliningbreaksdownandflowsoutthroughthevagina● Low levels of estrogen and progesterone Day 6-13● Follicle-stimulatinghormone(FSH)releasedbyanteriorpituitaryglandstimulatesdevelopment of primary follicle in one of the ovaries● Thedevelopingfolliclesecreteshormone,estrogenfortherepairandgrowthofthe uterine lini