1. HUMAN REPRODUCTION Sexual reproduction is the process involving the fusion of haploid nuclei to form a diploid zygote and the production of genetically dissimilar offspring

2. MALE REPRODUCTIVE SYSTEM

3. HORMONES: male Testosterone (testes) Development of male sexual secondarycharacteristics: - Penis and testes grow: produce sperm and testosterone - Facial hairdevelops - Changestolarynx: deepervoice - Hairgrowsonchest and in armpits - Pubichairdevelops

4. FEMALE REPRODUCTIVE SYSTEM

5. HORMONES: female Oestrogenandprogesterone Development of male sexual secondarycharacteristics: - Ovariesgrow- eggsdevelop and female hormones are released - Hairgrows in armpits - Brestsdevelop/increase in size - Hipsbroaden - Pubichairgrows - Vagina enlargens

6. Female hormones

7. OVARIES

8. MENSTRUAL CYCLE

9. Fertilisation: thejoining of thenuclei of themalegamete (sperm) and thefemalegamete (egg)

10. Ovulation and implantation

11. PLACENTA

12. BIRTH Itbeginswhenthestrongmuscles in thewall of theuterusstarttocontract. Thisiscalledlabour. Thewall of thecervix, graduallybecomeswideenoughforthebabytobepushedthrough. Thewall of the vagina can stretchtoallowthebabytobepushedthrough.

13. Birth

14. AfterbirthThe placenta fallsawayfromthewall of theuterus, and passesoutthroughthe vagina.

15. ANTE-NATAL CARE Dietplenty of calcium: why? Dietplenty of extra iron: why? Dietwith extra carbohydrates: why? Dietwith extra protein: why? Continuetotakeexercise No smoking: why? Nottoomuch alcohol ordrugs. Avoidillnesses: rubella (deaforotherdisabilities) AIDS: the virus HIV can crossthe placenta

16. Breastfeeding vs. Milk formula

17. Advantage of breastmilk vs. Formula milk Free! No needto use anequipment, which, unlesscleanit´seasierfor bacteria togetintothemilk and makethebabyill. Containsantibodiesfromthemother, whichhelpsthebaby ti fight off infectiousdiseases. Closerelationshiptodevelopbetweenmother and baby. Thecompositionchanges as itgrows so that´sexactlyrightforthedifferentstages of development.

18. BIRTH CONTROL:methods NATURAL ->abstinence CHEMICAL ->contraceptivepill ->spermicide MECHANICAL ->condom ->diaphragm ->IUD SURGICAL -> vasectomy -> femalesterilisation

19. SOME METHODS OF BIRTH CONTROL

20. SEXUAL TRANSMISSABLE DISEASES GONORRHOEA AIDS

21. GONORRHOEA

22. AIDS: acquiredimmunedeficiencysyndrome