Respiratory System Quiz

Which organ is responsible for the exchange of oxygen and carbon dioxide in the respiratory system?

• heart

• liver

• stomach

• lungs

What is the main function of the lungs in the respiratory system?

• Filter the blood

• Facilitate gas exchange

• Produce mucus

• Regulate body temperature

What is the name of the tube that connects the throat to the lungs?

• bronchus

• esophagus

• trachea

• pharynx

What is the purpose of the diaphragm in the respiratory system?

• The purpose of the diaphragm in the respiratory system is to produce sound.

• The purpose of the diaphragm in the respiratory system is to filter the air.

• The purpose of the diaphragm in the respiratory system is to store oxygen.

• The purpose of the diaphragm in the respiratory system is to facilitate breathing by expanding and contracting the lungs.

Which organ helps in filtering and moistening the air we breathe?

• lungs

• nose

• stomach

• heart

What is the process called when we inhale and exhale air?

• respiration

• breathing

• exhalation

• inhalation

What is the function of the trachea in the respiratory system?

• Carrying air to the lungs

• Filtering oxygen from the air

• Producing mucus to trap dust particles

• Regulating the flow of air in and out of the lungs

Which organ is responsible for producing sound in the respiratory system?

• esophagus

• trachea

• larynx

• bronchi

What is the name of the small air sacs in the lungs where gas exchange occurs?

• pleura

• bronchioles

• trachea

• alveoli

What is the purpose of the cilia in the respiratory system?

• To move mucus and foreign particles out of the airways.

• To regulate the temperature of the air inhaled.

• To produce oxygen for the body.

• To help with gas exchange in the lungs.