Human Body Systems: Circulatory, Respiratory, and Digestive

Front

What is the main function of the circulatory system?

Back

To transport blood, nutrients, gases, and waste products throughout the body.

Front

What is digestion?

Back

The process your body uses to turn food into the nutrients it needs.

Front

Which organ is primarily responsible for pumping blood in the circulatory system?

Back

Heart

Front

What is gas exchange?

Back

The process of exchanging oxygen and carbon dioxide between the blood and the outside environment.

Front

What are the main organs of the respiratory system?

Back

Nose, trachea, bronchi, lungs, and diaphragm.

Front

What is the role of the diaphragm in respiration?

Back

It contracts and relaxes to help draw air into and push air out of the lungs.

Front

What is the primary function of the lungs?

Back

To facilitate gas exchange by taking in oxygen and expelling carbon dioxide.

Front

What is the difference between the respiratory and circulatory systems?

Back

The respiratory system is responsible for gas exchange, while the circulatory system transports blood and nutrients.

Front

What is the role of red blood cells?

Back

To carry oxygen from the lungs to the body's tissues and return carbon dioxide to the lungs.

Front

What is the trachea?

Back

The windpipe that connects the throat to the lungs, allowing air to pass through.