UBSON - Respiratory System Quiz

What is the main function of the respiratory system?

• Digest food

• Supply oxygen to the body

• Pump blood to the heart

• Regulate body temperature

Answer explanation

The main function of the respiratory system is to supply oxygen to the body.

Which structure separates the nasal cavity from the oral cavity?

• Trachea

• Palate

• Pharynx

• Epiglottis

Answer explanation

The structure that separates the nasal cavity from the oral cavity is the Palate.

What is the function of the paranasal sinuses in a human body?

• Moisten air

• Heat air

• Filter air

• Produce mucus

Answer explanation

The paranasal sinuses function to produce mucus, which helps to moisten and filter the air we breathe in.

Which part of the respiratory system serves as the site of voice production?

• Bronchi

• Larynx

• Trachea

• Alveoli

Answer explanation

The larynx serves as the site of voice production in the respiratory system.

What is the purpose of the epiglottis?

• Exchange gases

• Cover laryngeal inlet during swallowing

• Produce mucus

• Filter air

Answer explanation

The purpose of the epiglottis is to cover the laryngeal inlet during swallowing, preventing food and liquids from entering the airway.

Where does gas exchange take place in the respiratory system?

• Larynx

• Trachea

• Alveoli

• Bronchioles

Answer explanation

Gas exchange takes place in the alveoli of the respiratory system, where oxygen is absorbed into the bloodstream and carbon dioxide is released.

What is the function of the conducting zone in the respiratory system?

• Exchange gases

• Supply oxygen to the body

• Filter air

• Warm air

Answer explanation

The function of the conducting zone in the respiratory system is to filter air, not exchange gases, supply oxygen, or warm air.

Which muscle is involved in the process of breathing?

• Hamstrings

• Biceps

• Quadriceps

• Diaphragm

Answer explanation

The muscle involved in the process of breathing is the Diaphragm.

What is the purpose of the pulmonary capillaries in the lungs?

• Exchange gases with alveoli

• Warm air

• Produce mucus

• Filter air

Answer explanation

The purpose of the pulmonary capillaries in the lungs is to exchange gases with alveoli, facilitating the transfer of oxygen into the bloodstream and removal of carbon dioxide.

Which structure in the respiratory system divides them into lobes?

• Alveoli

• Trachea

• Bronchioles

• Fissures

Answer explanation

The structure in the lungs that divides them into lobes is the fissures, not the alveoli, trachea, or bronchioles.