What is an organ system? Name three organ system in the human body and thier main functions.
Answers
Answer:
Answer:The main systems of the human body are:
1) Circulatory system / Cardiovascular system: Circulation of blood in the whole body.
2) Digestive system: Digestion of food and release of energy and essential nutrients in blood.
3) Excretory system :- Removal of wastes and harmful products present in our body and blood.
4) Immune system: Helps to kill foreign and harmful particles and microbes entered our body.
5) Muscular system: Protection of skeletal system, tissues and internal organs.
6) Nervous system: Protects our body tissues such as skin from piercable materials, heat, cold, etc. which can have harmful effect on our body and may block or disturb our body functions. It helps us by the mean of sensation.
7) Urinary system: Helps our body to improve our immune system and removal harmful liquids and fluids such as nitrogenous waste, urea, etc. and maintains water level in our body.