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Life sciences Gr12 IEB: Reproduction in humans R100,00   Add to cart

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Life sciences Gr12 IEB: Reproduction in humans

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A power point created by a 2021 IEB matric. Notes consist of: Male and Female reproductive organs and their functions; Puberty & adolescence; Gametogenesis (Oogenesis & Spermatogenesis); Menstrual cycle & Menopause; Contraception & STDs; Pregnancy & the phases (from fertilisation to birth); The pl...

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  • January 11, 2022
  • 41
  • 2021/2022
  • Presentation
  • Unknown
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camrynjordaan
Reproduction in
humans

,Intro
• Main reason for reproduction = genes are inherited by generations
and for survival of species
• Reproductive organs in humans = testes and ovaries
• Genitalia = penis and vagina

,Male reproductive organs

, 1. Testes & scrotum
• Scrotum = protects and holds the testes, temp. regulator for optimal
spermatogenesis (drops when hot, towards body when cold since sperm
survive at a certain temp)
• Testes = long, convoluted tubules -> seminiferous tubules, lined with
germinal epithelium. Cells of Leydig / interstitial cells = produce
testosterone
F = spermatogenesis.
Produce immature,
immobile spermatids.

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