Quiz on the Respiratory System

What are the two main parts of the respiratory system classified structurally?

• Nasal and oral cavity

• Conducting and respiratory zone

• Upper and lower respiratory system

• Alveoli and bronchi

Which law states that the volume of a gas varies inversely with its pressure?

• Charles's Law

• Boyle's Law

• Henry's Law

• Dalton's Law

What is the primary function of the pharynx?

• Oxygen transport

• Passageway for air and food

• Gas exchange

• Sound production

Which component of the respiratory system is responsible for sound production?

• Bronchi

• Alveoli

• Larynx

• Trachea

What percentage of oxygen is carried by hemoglobin in the blood?

• 70%

• 23%

• 98.5%

• 1.5%

What is the primary role of alveoli in the respiratory system?

• Air passage

• Gas exchange

• Blood filtration

• Sound production

Which factor does NOT affect the affinity of hemoglobin for oxygen?

• Partial pressure of CO2

• Age

• pH

• Temperature

What is the term for normal quiet breathing?

• Hyperventilation

• Dyspnea

• Apnea

• Eupnea

What happens during external respiration?

• Oxygen diffuses from tissues to blood

• CO2 diffuses from blood to alveoli

• Oxygen diffuses from alveoli to blood

• CO2 is produced in the lungs

Which part of the respiratory system is primarily involved in the exchange of gases?

• Bronchi

• Trachea

• Larynx

• Alveoli