Health matters! How our bodies change Lesson 5
The female body • Inside the ovaries there are up to 2 million eggs that will be released monthly when a girl reaches puberty. • When a girl reaches puberty she produces an ovum (egg) every month. This is released at ovulation into the fallopian tube to begin its journey to the uterus or womb. • Every month the womb prepares to receive a fertilised egg by thickening the lining of the womb. If the egg isn’t fertilised the lining breaks up and is released a small amount of blood with the egg. This is called menstruation. • http://kidshealth.org/teen/your_body/body_basics/female_repro.html • (Demonstration/ interactive diagram using the web link above)
The male body • When a boy reaches puberty (between ages 12-15) he will begin to produce sperm. These are made in the testes and are necessary to fertilise an ovum. Sperm are released during sexual intercourse. • Sperm cells are produced continuously in tiny coiled tubes in the testes ( testicles) • They are squeezed from the testes into the epididymis where they mature for two weeks • The testes are held in a bag of skin called the scrotum behind the penis.
The male body • The testes produce sperm throughout a mans life. Several million are produced every day. • During sexual excitement the sperm mix with a milky liquid called semen. • Semen is released from the body through masturbation, wet dreams and sexual intercourse. All of this is completely normal. • Semen is never released with urine. • Explore the link below to show interactive diagram http://kidshealth.org/teen/your_body/body_basics/male_repro.html