where does the sperm come from

Question: where does the sperm come from

Asked by joel to Betul, Bridget, Ceri-Wyn, Laurel, Maria on 21 Jun 2010 in Categories: General.
- Betul Arslan answered on 17 Jun 2010:
  
  It is produced in your testes. Around age of 12-13 they start to produce, although not all the sperm is equal, your body is the machine that makes them – just like all the other things we have. Sounds like a magic!
- Ceri-Wyn Thomas answered on 17 Jun 2010:
  
  In humans sperm is formed in the male testes or testicles. Inside your testicles (I’m assuming you’re a guy but forgive me if I’m wrong!) there are loads of really fine tubes that are all scrunched up- they’re called the seminiferous tubules- nice name eh? Anyway these tubules are lined with special cells called germ cells (germ in this case means a type of cell that will give rise to gametes- sperm or in girls, eggs.) These germ cells undergo a process called spermatogenesis. Basically they go from a blobby-looking cell to a sperm cell. The sperm then travel through the testicles and well……….you know the rest.
- Bridget Waller answered on 21 Jun 2010:
  
  Sperm is the male gamete, and is formed in the testes. Each one contains an exact copy of half a person’s genetic material, and will not change during his lifetime!

Question: where does the sperm come from