Respiratory System Quiz

What does the respiratory system deliver to the blood?

• Nutrients

• Carbon dioxide

• Oxygen

• Hormones

Why does a person breathe faster?

• To increase oxygen intake

• To cool down the body

• To get rid of more carbon dioxide

• To slow down the heart rate

What is the function of the nasal cavity in the respiratory system?

• It connects the passages of your nose and mouth to your esophagus.

• It keeps food from entering your trachea.

• It warms and moistens the air entering your nose.

• It contains your vocal cords.

What does the pharynx connect in the respiratory system?

• The nasal cavity to the lungs.

• The passages of your nose and mouth to your esophagus.

• The trachea to the bronchi.

• The mouth to the nasal cavity.

What is the role of the larynx in the respiratory system?

• It warms and moistens the air entering your nose.

• It connects the passages of your nose and mouth to your esophagus.

• It keeps food from entering your trachea and contains your vocal cords.

• It filters the air entering your lungs.

What does air pass through before reaching the lungs?

• Bronchi

• Alveoli

• Trachea

• Diaphragm

Into how many bronchi does the trachea branch?

• One

• Two

• Three

• Four

What are the lungs made of?

• Hard tissue

• Muscular tissue

• Spongy tissue

• Fibrous tissue

What are the tiny sacs in the lungs called where gas exchange takes place? (a)  

• Bronchioles
• Ventricles
• Alveoli
• Capillaries

What is the main function of the respiratory system?

• To deliver oxygen to cells

• To digest food

• To circulate blood

• To filter waste products