Answer:
What are the 11 human body systems and their functions?
The main systems of the human body are:
Circulatory system / Cardiovascular system: ...
Digestive system and Excretory system: ...
Endocrine system: ...
Integumentary system / Exocrine system: ...
Immune system and lymphatic system: ...
Muscular system: ...
Nervous system: ...
Renal system and Urinary system.