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Human Reproduction: Reproductive Anatomy LG 2: Understanding of Reproductive Anatomy SC: I can Identify 8 Male Reproductive Organs SC: I can identify 8.

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Presentation on theme: "Human Reproduction: Reproductive Anatomy LG 2: Understanding of Reproductive Anatomy SC: I can Identify 8 Male Reproductive Organs SC: I can identify 8."— Presentation transcript:

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 its 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

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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. Cowpers 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 Penisa 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 1)Testicle: Sperm Production 2)Epididymis: Sperm Maturation 3)Vas Deferens 4)Prostate & Seminal Vesicle: Sperm to Semen 5)Urethra & Cowpers Gland 6)Penis...and then...

12 EJACULATION! Ejaculation: The release of Semen from the Penis. Ejaculate: syn. Semen Pre-Ejaculate: Fluid secreted by Cowpers 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 System External View

14 Female Reproductive System Internal 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 females 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- packedmuch 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 1)Ovary: Storage & Maturation 2)Fallopian Tube: Egg Carried to the Uterus --Conception or Menstruation– 3)Uterus: Egg embeds in Uterine Lining 4)Cervix: 5)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 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 its 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 daysonce a monthbut can vary – An irregular period is normal for Pubescent


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