Explore Human Body Systems

What is the main function of the circulatory system?

• To digest food and absorb nutrients.

• To provide structural support to the body.

• To facilitate the exchange of gases in the lungs.

• To transport blood and essential substances throughout the body.

Which organ is responsible for filtering blood in the body?

• Liver

• Lungs

• Kidneys

• Heart

What system is responsible for transporting oxygen to cells?

• Nervous system

• Circulatory system

• Digestive system

• Respiratory system

Name the largest organ in the human body.

• Lungs

• Skin

• Liver

• Heart

What is the primary function of the respiratory system?

• To regulate body temperature through sweating.

• To digest food and absorb nutrients.

• To circulate blood throughout the body.

• To facilitate gas exchange (oxygen and carbon dioxide) between the body and the environment.