G7 Circulatory and Respiratory System Quiz

What is the respiratory system?

• The body's breathing system

• The body's system of nerves

• The body's food-processing system

• The body's blood-transfer system

What important gas from the air is needed by all parts of the body?

• Nitrogen

• Oxygen

• Argon

• Carbon dioxide

What is the main function of the diaphragm?

• Pump blood into the lungs

• Open and close the lungs

• Expands/contracts the chest to allow breathing

• All of the above

What occurs inside the lungs?

• Nutrients are digested

• Liquid waste is filtered from the blood

• The blood is pumped to all body cells

• Oxygen is exchanged for carbon dioxide

What gas is exhaled from the body into the air?

• Carbon dioxide

• Oxygen

• Argon

• Nitrogen

What is the purpose of nasal hair?

• Stops dust and germs from entering

• Helps to keep the air moist

• Helps warm the air

• All of the above

What picks up oxygen from the lungs and carries it to all of the cells of the body?

• White blood cells

• Red blood cells

• Veins

• Blood platelets

The bronchi of the lungs end with many tiny little sacs. What are these sacs?

• Capillaries

• Alveoli

• Bronchioles

• Arterioles

Through what structure does oxygen move into the bloodstream?

• Alveoli

• Arterioles

• Capillaries

• Bronchioles

What flap over the trachea keeps food from entering?

• Supraglottis

• Glottis

• Epiglottis

• Larynx