Describe the structure and main functions of all major body systems.

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P3-Describe the structure and main functions of all major body systems.

The human body is made up of several systems, which contribute and are vital to the proper functioning of the human body. The main systems are:

  • Cardiovascular (circulatory) system
  • Respiratory system
  • Digestive system
  • Nervous system
  • Integumantary system
  • Urinary system
  • Lymphatic system
  • Endocrine system
  • Skeletal system
  • Muscular system
  • Reproductive system (male and female)

Cardiovascular system is where the heart pumps oxygenated blood around the body and also takes out the carbon dioxide out of the cells. The function of the cardiovascular system is very important for our existence, because it plays a very important role in the body. It transports materials from and to cells, checks that the body’s water levels aren’t to high and it spreads the heat around the body and also helps to maintain the body’s temperature.

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The respiratory system’s main function is to supply the blood with oxygen in order for the blood to deliver to all parts of the body. It delivers oxygen throughout the body by breathing. When we are breathe, we inhale oxygen and exhale carbon dioxide. This gaseous exchange is the way that the respiratory system gets oxygen to the blood.

The digestive system is linked to the stomach and the abdomen area. Without the digestive system we wouldn’t be able to consume food. The main function of the digestive system is to break down food into substances which can ...

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