Circulatory, Respiratory, and Digestive Systems

The main structure of the circulatory system is the lungs.

• True

• False

Name two functions of the circulatory system.

Which is NOT part of the digestive system?

• stomach

• trachea

• intestines

• mouth

The function of the respiratory system is to collect ________ and remove carbon dioxide

The muscular system works with the circulatory system.

• True

• False

What is the function of the digestive system?

What is the function of the respiratory system?

Which is NOT a part of the respiratory system?

• lungs

• mouth

• nose

• esophagus

The skeletal system and the circulatory system work together.

• 
  True

• False

The heart is a part of the circulatory system.

• True

• False