Circulatory and Respiratory

When you breathe, your lungs take in ___ and remove ___.

• carbon dioxide/oxygen

• oxygen/carbon dioxide

• carbon dioxide/waste

• waste/air

What are the main organs of the respiratory system?

• muscles
• lungs
• nose and mouth
• bronchi

What is the main function of the heart ?

• The heart pumps blood and oxygen throughout the body.

• The heart is the control centers for all body activities.

• The heart gets rid of the wastes in your body produced by homeostasis.

• The heart adds oxygen to the blood

The heart pumps blood to get ________ to our cells.

• carbon dioxide
• urea
• oxygen

Vessels that carry oxygen rich blood away from heart

• Arteries

• Veins

• Capillaries

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide

The air sacs of the lungs that are covered with capillaries where gas exchange takes place

• bronchi

• lungs

• oxygen

• alveoli

What is the main organ in the respiratory system?

• lungs

• heart

• vein

• diaphragm

What is the main organ in the circulatory system?

• lungs

• heart

• artery

• bronchi

You breathe in ___________ and breathe out ___________

• carbon dioxide, oxygen

• oxygen, carbon dioxide