Human Body Systems

Front

Why is the heart in the circulatory system so important?

Back

It pumps the blood around the body.

Front

What do T-Cells do in the immune system?

Back

Identify pathogens and tell them apart using the pathogens antigens.

Front

What organ controls most functions in the body?

Back

Brain.

Front

What line of defense is skin in the immune system?

Back

First.

Front

What do sneezing and coughing do?

Back

Force pathogens out of your body.

Front

What is the main function of the circulatory system?

Back

To transport blood, nutrients, and oxygen throughout the body.

Front

What is the role of the respiratory system?

Back

To facilitate breathing and gas exchange (oxygen and carbon dioxide).

Front

What is the function of the immune system?

Back

To protect the body from pathogens and diseases.

Front

What is the largest organ in the human body?

Back

Skin.

Front

What is the function of red blood cells?

Back

To carry oxygen from the lungs to the rest of the body.