Respiratory System Quiz

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

• Gas exchange

• Regulation of blood pH

• Production of insulin

• Voice production

What is the primary function of the conducting zone?

• Gas exchange

• Transport air into the lungs

• Exchange carbon dioxide for oxygen

• Filter blood in the lungs

The nasal conchae function to:

• Produce sound

• Trap and filter incoming air

• Transport food to the stomach

• Exchange gases in the lungs

Which part of the pharynx serves as a passageway for only air?

• Oropharynx

• Laryngopharynx

• Nasopharynx

The structure that prevents food from entering the trachea during swallowing is the:

• Epiglottis

• Cricoid cartilage

• Larynx

• Trachea

The trachea is reinforced with C-shaped cartilage rings because they:

• Prevent food from entering the trachea

• Allow flexibility while keeping the airway open

• Store oxygen for gas exchange

• Help in the production of sound

Which structure is the site of gas exchange in the lungs?

• Bronchioles

• Trachea

• Alveoli

• Nasal cavity

What is the primary muscle responsible for breathing?

• Pectoralis minor

• Sternocleidomastoid

• Intercostal muscles

According to Boyle’s Law, when lung volume increases, lung pressure:

• Increases

• Decreases

• Stays the same

• Becomes equal to atmospheric pressure

Which lung volume represents the normal amount of air exchanged during quiet breathing?

• Inspiratory reserve volume

• Tidal volume

• Expiratory reserve volume

• Residual volume