The main systems of the human body are:

  • The circulatory system
  • The digestive system
  • The excretory system
  • The locomotor system
  • The nervous system
  • The reproductive system
  • The respiratory system

Different parts of your body and their functions
The Dr. Binocs Show
Source | Peekaboo Kidz

Interesting facts about the human body
Fascinating facts about our body.
Source | Happy Learning English