Respiratory System Quiz

What is a unique feature of the air in your lungs?

• It is always sterile

• Some air never leaves

• It is always warm

• It is always humid

What is the primary function of the respiratory system?

• Circulating blood

• Exchanging gases

• Digesting food

• Producing hormones

What is a common cause of snoring?

• Blocked airways

• High blood pressure

• Low blood sugar

• Dehydration

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

• Filtering air

• Voice production

• Gas exchange

• Blood circulation

Which of these are roles of the nose?

• To trap bacteria

• To filter air

• To warm the air

• To support the nasal cavity

What is the role of the pharynx in the digestive system?

• To produce sound

• To direct food to the stomach

• To filter air

• To pump blood

What type of cells line the alveoli?

• Muscle cells

• Nerve cells

• Epithelial cells

• Transitional cells

Which type of blood enters the alveoli for gas exchange?

• Oxygen rich blood

• Oxygen poor blood

• Carbon dioxide rich blood

• Nitrogen rich blood

Which layer of the pleura is closest to the chest?

• Visceral pleura

• Parietal pleura

• Pleural cavity

• Diaphragmatic pleura

What is the function of pleural fluid?

• To transport oxygen

• To reduce friction

• To carry nutrients

• To store energy