Respiratory System Quiz

Which of the following is NOT a component of the respiratory system?

• Lungs

• Liver

• Bronchi

• Trachea

What is the main role of the respiratory system?

• Provide oxygen to the body cells

• Regulate body temperature

• Provide nutrients to the body cells

• Remove carbon dioxide from the body

What is the function of the cilia in the nasal cavity?

• Exchange gases

• Produce mucus

• Filter out foreign substances

• Warm the air

Which structure is responsible for the production of sounds of speech and singing?

• Trachea

• Bronchi

• Larynx

• Pharynx

How many lobes does the right lung have?

• One

• Two

• Three

• Four

What happens to the diaphragm during inhalation?

• It raises the ribs

• It contracts by flattening

• It lowers the ribs

• It relaxes

Where does the gas exchange between the alveoli and capillaries occur?

• Lungs

• Larynx

• Pharynx

• Nasal cavity

What is the main function of red blood cells during respiration?

• Carry carbon dioxide

• Expel carbon dioxide

• Exchange oxygen for carbon dioxide

• Carry oxygen using hemoglobin

What is the main function of alveoli in the lungs?

• Warm the air

• Filter out foreign substances

• Exchange gases

• Produce mucus

What is the process of breathing in called?

• Respiration

• Exhalation

• Inhalation

• Circulation