Reproductive systems
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Reproductive systems

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    Reproductive systems Reproductive systems Presentation Transcript

    • ReproductiveSystems Male and Female
    • Sexuality is NOT just aboutscience or medical terms…….. It is about: Physical, Emotional, and Behavioral differences in males and females
    • Changes during Puberty1. Physical Changes: growth spurts andhair growth2. Emotional Changes: relationship withparents become more challenging,relationship with peers changes as we try tofigure out who our real friends are and whowe want to associate with, romanticrelationships begin to develop, peerpressure, approval of others
    • 3. Behavioral Changes: ability to thinkabout and learn about new topics; abilityto debate about issues in a moresophisticated way trying to form anidentity and express it; dating, hangingout in peer groups including the oppositesex; more responsibilities; driving; senseof responsibilities for one’s own actionsand how they affect other
    • Males
    • Hormones are directly or indirectlyresponsible for the changes that occurduring puberty.Male Hormone: TestosteroneBrain sends message to the testicles tobegin making testosterone to tell them togrow or change. Hormones indirectlyaffect how we feel or behave.
    • Changes in Boys: height increases(growth spurt), testicles enlarge,penis grows, pubic hair grows,underarm hair grows, facial hairgrows, voice lowers, body hairincreases, shoulders broaden; thecapacity to produce sperm
    • Uncomfortable Words? Penis  Vagina Testicle  Ovary Scrotum  Uterus Vas Deferens  Cervix Prostate  Fallopian Tube
    • MaleReproductiveSystem Urethra Vas Deferens
    • Scrotum The testes are inside a sac called the scrotum. It hangs outside the body. Sperm only develop properly in cool conditions. Semen is also made in this location so the sperm have a fluid to travel in.
    • Vas Deferens/ Seminal Vesicles Sperm are produced all the time. They are stored in small tubes outside the testes. Eventually they pass along a much bigger tube called the Vas Deferens. The sperm will travel past the Vas Deferens and the Seminal Vesicles.
    • Prostate Gland The prostate gland is to secrete a slightly alkaline fluid that forms part of the seminal fluid for the sperm to swim.
    • Bladder/Urethra This contains liquid waste/urine from the body which then is removed through the urethra.
    • Penis The penis must be erect for the semen to pass out. This happens when blood is pumped into special spongy tissue in the penis.
    • Sperm During an ejaculation semen is pumped out of the penis – due to a contraction of the muscles around the sperm tubes. Each ejaculation makes about a teaspoon of semen but this can contain: 500 million sperms.
    • Females
    • Hormones are directly or indirectlyresponsible for the changes that occurduring puberty.Female Hormone: EstrogenBrain sends message to the ovaries tobegin making estrogen to make eggsfertile. Hormones indirectly affect howwe feel or behave.
    • Changes during Puberty1. Physical Changes: growth spurts andhair growth2. Emotional Changes: relationship withparents become more challenging,relationship with peers changes as we try tofigure out who our real friends are and whowe want to associate with, romanticrelationships begin to develop, peerpressure, approval of others
    • 3. Behavioral Changes: ability to thinkabout and learn abut new topics; ability todebate about issues in a moresophisticated way trying to form andidentity and express it; dating, hangingout in peer groups including the oppositesex; more responsibilities; driving; senseof responsibilities for one’s own actionsand how they affect other
    • Changes in Girls: height increases(growth spurt), pubic hair grows,underarm/leg hair grows, thecapacity to produce estrogenwhich make eggs fertile, breastsenlarge, hips widen, menstruation
    • Female Reproductive System Fallopian Tubes ovaries Uteruscervix vagina
    • Fallopian Tube ovary uterus bladder cervixvagina anus urethra
    • Ovaries The ovaries are the female sex organs. They produce the eggs. They also make the female hormones estrogen and progesteron (begins to produced between 10 and 15 years).
    • Fallopian Tubes An egg is released about every 28 days. The egg passes out of the ovary and moves into the fallopian tubes. This is called ovulation and is when an egg may become fertilized.
    • Uterus The egg slowly moves down towards the uterus (womb). If sperms are present in the Fallopian tubes, the egg will be fertilized. If the egg is not fertilized, it will die after about a day.
    • Cervix The lower end of the uterus has a ring of muscle called the cervix. It leads to a muscular tube called the vagina..
    • Vagina This is a muscular tube that is 9 to 10 centimeters in length which leads to the outside of the female body. It is also called the birth canal.
    • Menstruation/ Period http://course.zju.edu.cn/532/study/theory/2/Ge
    • Pregnancy
    • TWINS