Child development

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Male reproductive system

Testis-produces sperm and testosterone
Scrotum-Bag of skin containing two testis.  Hangs outside the body allowing the sperm to be stored at a lower temperature than body heat.
Sperm duct-Sperm travel through this from the testes to the urethra
Prostate gland and seminal vesicles-Add fluid to the sperm to form semen that activates the sperm and provides energy for it.
Urethra-This tube transports semen and urine out of the body. During intercourse the exit from the bladders is closed so the two fluids can't mix.
Penis-Varying in length. Its flaccid, but fills with blood, becoming hard when sexually stimulated, ejaculating semen into the vagina and then becoming limp.
Foreskin-Covers and protects the end of the penis, sometimes surgically removed for medical or religious reason (circumcision)

Sperm is produced by the testes and stored in the epididymis, which is released at ***********. It rushes through the ducts, as the prostate gland and the seminal vesicles release seminal fluid which nourishes the sperm.

Female reproductive system

Uterus-size of a clenched fist with very muscular walls. It increases from approximately 30g of weight to 1kg during pregnancy.
Lining of the uterus-Comes away each month duyring menstruation if a fertilised ovum hasn't been planted in it.
Fallopian tube-Links ovaries to uterus and is where fertilisation takes place.
Funnel-Catches the released ova and wafts it into the fallopian tube.


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