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Body Systems Reproductive System: 1.Puberty 2.Body Parts 3. Life Choices 4. Pregnancy 5. STIs Puberty 101 (puberty101.com) Puberty is usually defined as the time when the onset of sexual maturity occurs and the reproductive organs become functional. It is the time when you become physically, mentally, and sexually mature Different for everyone Start time – no official date and time Experiences - some good, some bad Confusing time – ask questions Ask questions of people you trust Friends may think they know but really don’t understand either Age doesn’t necessarily mean wiser Don’t believe everything your read or hear Check your information – it could save you embarrassment or worse Puberty http://www.cfsh.ca/Your_Sexual_Health/Puberty.aspx Puberty for Males Puberty – change happens! Puberty for Females Puberty – change happens! Anatomy – get ready! It is extremely important to know the correct terminology for human body parts Sexual predators more likely to abuse child who does not know proper names Court cases thrown out due to incorrect terminology Medical conditions misdiagnosed due to lack of information Anatomy - Males •Male reproductive system outside of body – overheating can cause infertility •Males have two openings – urethra and anus •Circumcision – foreskin removed – cultural or religious choice •Sperm production begins at puberty and continues until death •Sperm produced in testicles •Seminal vesicles add semen (fluid) helping sperm move easier •Prostate gland – Prostate cancer leading cause of death in older men •Vasectomy – cutting or tying the Vas deferens to stop the flow of sperm Anatomy - Females •Female reproductive system is inside body •Females have three openings – urethra, vagina, anus •Reproductive years are between puberty and menopause (about10years to 55 years) •Eggs stored in ovaries – eggs woman is born with is all she has for life •Hysterectomy is a surgical removal of the uterus Menstrual Cycle •Menstruation is the shedding of the uterine lining •Approximately every 28 days •Uterus lining prepares for egg •If the egg is not fertilized the lining will shed •Cramping and uncomfortable stomach pains are associated with menstrual cycle Pregnancy Conception: egg released and meets up with sperm – happens in fallopian tubes •9 month (40 weeks) of development: •1st trimester essential for foetal development •2nd trimester – external genital organs begin to develop •3rd trimester – earliest point at which foetus can potentially survive outside of womb Having a baby! •Placenta – sac that holds foetus and amniotic fluid •Umbilical cord – connects mother and foetus – what goes in mother gets into baby •Amniotic fluid – allows for baby to move and survive http://oneway.jesusanswers.com/images/12weekfetus.jpg Having a baby! •Contractions – muscle cramps pushing the baby down towards the vagina •Breech – bottom first, baby in V shape •Natural or vaginal birth – baby delivered through mother’s vagina •Caesarean birth – baby delivered with surgeon’s help through mother’s stomach It’s a . . . Sex determined by father X or Y sperm meets up with Female X egg XX = female XY = male Twins: Identical = single egg dividing Identical chromosomes Common placenta Fraternal = two eggs fertilized by two different sperms Different chromosomes Separate placenta Variety of combinations of girl/boy etc Abortion – termination of pregnancy Spontaneous – miscarriage, body spontaneously expels foetus from woman Therapeutic – medically assisted Surgical – manual vacuum aspiration (can be performed up to 20 weeks into pregnancy) Medical - using the drugs Methotrexate and Misoprostol (only available up to 7 weeks) Safe Sex – avoiding pregnancy and STIs ABSTINENCE = 100% safe and effective! Contraceptives Sexually Transmitted Infections Bacterial Viruses Chlamydia Genital Herpes Gonorrhea Human Papilloma Virus (HPV) – warts Syphilis Hepatitis A, B, C Pelvic Inflammatory Disease Human Immunodeficiency Virus (HIV) Trichomoniasis Acquired Immune Deficiency (AIDS) Pubic Lice or Crabs Vaginal Infections and Yeast More information http://www.cfsh.ca/ http://puberty101.com/ http://kidshealth.org/teen/sexual_health Family doctor Fraser Valley Health clinic Possible Test Questions Define puberty Give 5 physical changes for a boy during puberty. Give 5 physical changes for a girl during puberty. Why is learning about puberty and your body important? Diagrams – label make and female parts Key words (define and know) Circumcision Vasectomy Hysterectomy Menopause Menstruation Conception Placenta Amniotic fluid Umbilical cord Breech Contractions Caesarean birth Possible Test Questions Who determines the sex of the child? Xy = Xx = Twins – explain the difference between identical and fraternal twins Abortions – name two methods of abortions Birth control – what is the only 100% method of avoiding pregnancy and STIs Safe sex- give 2 barrier methods of contraception? Give 2 hormonal methods of contraception Give 2 bacterial STIs Give 2 viral STIs What is the only 100% method of avoiding pregnancy and STIs Who should you ask for advice/info regarding puberty and safe sex?
