Sexual reproduction in Human beings. Learning outcomes. Identify on diagrams of the male reproductive system and give the functions of testes, scrotum, sperm ducts, prostate gland, urethra and penis
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State the functions of:
Name the organ/ organs that carry out the function:
Released in millions
Able to move
Very small (0.05 mm)
Very little cytoplasm
Nucleus contains either an X or a Y chromosome
Released one per month
Unable to move by their own
Comparatively large (o.1mm in diameter)
A lot of cytoplasm which contains nourishment for the zygote if the ovum is fertilised
Nucleus always contains an X chromosomeFemale gametes vs male gametes
Compare the human male and female gametes in terms of
In each case, suggest reasons for the differences you describe.
Repair of uterine lining:
Thickening of the lining
These factors can alter or stop the menstrual cycle
Fertilization and development of embryo
A woman with blocked oviducts cannot have a baby in the normal way but can now have a ‘test-tube’ baby. A doctor, using a fine tube through the body wall, sucks up several eggs from the ovary, puts them in a dish and mixes them with sperm. The eggs are then kept for a few days before they are put back into the woman’s uterus via the cervix.