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Human Reproduction: Reproductive Anatomy

Human Reproduction: Reproductive Anatomy . LG 2: Understanding of Reproductive Anatomy SC: I can Identify 8 Male Reproductive Organs SC: I can identify 8 Femal e Reproductive Organs SC: I can explain the functions of reproductive organs

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Human Reproduction: Reproductive Anatomy

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  1. Human Reproduction:Reproductive Anatomy LG 2: Understanding of Reproductive Anatomy SC: I can Identify 8 Male Reproductive Organs SC: I can identify 8 Female Reproductive Organs SC: I can explain the functions of reproductive organs LG 3: Understanding of the Travel Path of the Sperm & Egg SC: I can diagram the travel path of the Sperm SC: I can diagram the travel path of the Egg SC: I can explain Menstruation and it’s stages

  2. Reproductive System Overview • Reproduction: Making New Offspring • Males Make Sperm (Male Sex Cell) • 23 Chromosomes donated to child from Father • Females Make Eggs (Female Sex Cell) • 23 Chromosomes donate to child from Mother • Conception: When the Sperm Fertilizes the Egg • Internal process (Mammal)

  3. Reproductive System Overview:Hormones • Hormone: Natural Chemicals that act as messengers which help the body work properly. These flow with the blood in the blood stream. • Sex Hormones: Hormones (gender specific) that trigger change in the body (like puberty), and are responsible for the production of Sex Cells. • Male Sex Hormone: Testosterone • Female Sex Hormone: Estrogen, Progesterone

  4. Reproductive Terminology • Genital: The parts of the reproductive system that are outside of the body. • Semen: Thick, Whitish Fluid that carries and nourishes Sperm. • Gland: The parts of the body which produce important fluids • Gonad: The sex glands. Gonads make Sex Cells (Eggs & Sperm) and Sex Hormones • Male: Testicles • Female: Ovaries

  5. Male Reproductive System

  6. Male Reproductive System

  7. Male Reproductive System:Organs & Functions • Penis: The organ of the male genitals. Responsible for transmission of semen to the Vagina. • Testicle: Male gonads. Testicles are found in the scrotum and they make sperm and produce testosterone. (Also called testes) • Scrotum: the sac that holds the testes and is responsible for regulating temperature.

  8. Male Reproductive System:Organs & Functions • Epididymis: Coiled tube, connected to the testicle. Once sperm are made, they are stored for maturation in the Epididymis. • Vas Deferens: The tube that carries mature sperm from the Epididymis into the body. • Seminal Vesicle: Glands on each of the vas deferens that make some of the liquid part of semen

  9. Male Reproductive System:Organs & Functions • Prostate Gland: Gland under the bladder that makes some of the liquid part of the semen. • Cowper’s Gland: Glands attached to the Urethra that make a discharge which lines the urethra during an erection. This fluid protects the sperm as they leave the body. • Urethra: the tube that carries Semen (and urine) out of the body.

  10. Male Reproductive System:The Penis—a Deeper Look • Shaft: The long, skin-covered part of the penis • Head: The nerve-filled part at the end of the penis (glans penis) • Foreskin: The sleeve of skin around the Head of the penis. It is sometimes removed. • Circumcision: An operation to remove the foreskin from the penis. • Flaccid: A state in which the penis is not erect • Erection: the penis fills with blood becoming larger and harder, preparing for ejaculation.

  11. The Travel Path of the Sperm • Testicle: Sperm Production • Epididymis: Sperm Maturation • Vas Deferens • Prostate & Seminal Vesicle: Sperm to Semen • Urethra & Cowper’s Gland • Penis ...and then...

  12. EJACULATION! • Ejaculation: The release of Semen from the Penis. • Ejaculate: syn. Semen • Pre-Ejaculate: Fluid secreted by Cowper’s Gland • 40 Million to 600 Million Sperm per each Ejaculation • Occurs at average speed of 28 mph • In a lifetime, men will produce 14 gallons of Sperm

  13. Female Reproductive SystemExternal View

  14. Female Reproductive SystemInternal View

  15. Female Reproductive System:Internal Organs & Functions • Fallopian Tubes (Uterine Tubes): The ducts that carry an Ovum (Egg) from the Ovary to the Uterus • Ovary: Female Gonad. Glands on either side of the Uterus where egg cells are stored and female hormones are made.

  16. Female Reproductive System:Internal Organs & Functions • Vagina: The “tube” leading from the Uterus to the outside of the female’s body. This is also called the Birth Canal • Cervix: The opening of the Uterus to the Vagina • Uterus: The organ where the fetus grows until birth.

  17. Female Reproductive System:External Organs & Functions • Clitoris: The part of the female genitals that is nerve-packed—much like the penis head. • Labia (Majora & Minora): Folds of skin in the fmale genitals that protect the openings to the Urethra and Vagina. • Hymen: The think skin that partly covers the opening to the vagina. It may be absent in some females.

  18. Female Reproductive System:Other tid-bits • Vulva: Term for Female Genitals • Urethra: Tube that cares urine out of the body • Ovum: syn. Egg • Discharge: Liquid/Fluid. Usually describes normal wetness of the vagina or abnormal wetness that may come from an infection in the Penis or Vagina

  19. The Travel Path of the Egg • Ovary: Storage & Maturation • Fallopian Tube: Egg Carried to the Uterus --Conception or Menstruation– • Uterus: Egg embeds in Uterine Lining • Cervix: • Vagina (Birth Canal)

  20. Menstruation: YOUR PERIOD • Menstruation: Process in which the Uterine Lining is broken down and discharged. Also called the Period. • Menstruation occurs on a 28 day (averaged) Cycle. • Days 1-5: The Uterine Lining is discharged from the body • Days 6-13: The Uterine Lining begins to build back up in preparation for Ovulation. • Days 14-17: OVULATION: the Ovum travels through the Fallopian Tube to be fertilized by the Sperm. • Days 18-28: If the egg is not fertilized, the Uterine Lining begins breaking down in preparation for expulsion.

  21. Menstruation: YOUR PERIOD • Most girls will have their first period between the ages of 10-16 • Most girls will be about 100 lbs. when it happens. • The PERIOD will last between 2-7 days • Tampons (inserted into the Vagina) and Pads should be changed often, as they can be Odorous...and it’s not a bad idea to carry an extra with you if you think your PERIOD is coming. • You CAN be active during your PERIOD • In fact, being active can help alleviate Cramps and Bloating • The average cycle is 28 days—once a month—but can vary • An irregular period is normal for Pubescent

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