Quick Notes

Quick Notes

Science Chapter 2: Humans
2.1 Human Reproduction
 
Humans reproduce to ensure the survival of their species. In this chapter students will learn more about human reproduction and the human nervous system.
 
2.1  Human Reproduction
 
Humans reproduce through a reproductive process that involves reproductive cells called gametes from a male and a female. The male and female reproductive organs form a reproductive system.
 
Reproduction
     
  The production of new individuals by living organisms  
 
Female reproductive organs
 
Organ Function
Vagina
  • The place where sperms are channelled
Ovary
  • Produces ovum and female sex hormones
Fallopian tube
  • The place where the fertilization process takes place between the sperm and the ovum
  • Connects ovaries and uterus
Uterus
  • A place for the embryo to develop and grow
  • Has tick muscular walls with numerous blood capillaries
 
Male reproductive organs
 
Organ Function
Testis
  • Produces sperm
Penis
  • Transfers sperms into the vagina
 

The human fertilization process until the baby is born

  • Sperm begins to be produced when a man reaches puberty
  • Ovaries produce ovum when a female reaches puberty
  • Fertilization is the process of fusion between sperm from a man and an ovum from a woman
  • Sperm from the male testes are released into the female vagina through the penis
  • Sperm swim towards the ovum
  • Only one sperm will fertilize one ovum
 

The importance of reproduction to humans

  • Increase the population
  • avoid extinction