#113 Reproduction in humans - Reproductive system

Reproduction in humans is when the male gamete (sperm) fuses together with the female gamete (ovum/egg).

At first, it is just one single cell, which duplicates over and over until after 9 months…… TA-Dahh! - A baby is born!















Male reproductive system

• Testes: produce sperm and testosterone
• Scrotum: a sac that keeps testes cool (outside body)
• Sperm ducts: link testis to urethra: allow passage of semen containing sperm
• Prostate gland: produce alkaline fluid ---> semen
• Urethra: urinate; pass semen (+sperm) through penis
• Penis: become firm, inserted into vagina during sexual intercourse ---> transfer sperm 

Female reproductive system

• Ovaries: contains follicles, produce and stores eggs, produce oestrogen
• Oviducts: carries ovum to uterus; Fallopian tubes = site of fertilisation
• Uterus – where fetus develops
• Cervix- a ring of muscles that separate the vagina from the uterus
• Vagina: receives sperm from erect penis during intercourse 

Comparing male and female gametes

Slide Show: Reproduction from TGES Biology

Video: Human Body Systems - Reproductive System