Respiratory System Quiz

Which part of the respiratory system is located directly above the trachea?

• Larynx

• Bronchi

• Alveoli

• Diaphragm

What is the primary function of the nasal cavity?

• To exchange gases

• To filter, warm, and humidify air

• To produce mucus

• To support the trachea

What does the bronchial bud develop into?

• Nasal cavity

• Primary bronchi

• Alveoli

• Trachea

What is the primary function of the respiratory portion of the respiratory system?

• Air conduction

• Gas exchange

• Air filtration

• Hormone secretion

What do alveolar ducts connect?

• Nasal cavities to the nasopharynx

• Respiratory bronchioles to the alveolar sacs

• Trachea to the bronchi

• Larynx to the trachea

What is the approximate temperature range of inhaled air that passes into the nasopharynx?

• 20°C–25°C (68°F–77°F)

• 31°C–34°C (88°F–93°F)

• 15°C–20°C (59°F–68°F)

• 25°C–30°C (77°F–86°F)

What prevents the dehydration of the underlying epithelium by the moving air?

• Increased airflow

• Mucus and serous secretions

• Decreased humidity

• Vibrissae

How are mucus and other secretions moved toward the pharynx?

• By gravity

• By coordinated sweeping movements of cilia

• By airflow pressure

• By muscle contractions

What is the primary lining of the respiratory region of the nasal cavity?

• Skin

• Olfactory mucosa

• Respiratory mucosa

• Stratified squamous epithelium

What is the role of sebaceous glands in the nasal vestibule?

• Produce mucus

• Assist in the entrapment of particulate matter

• Facilitate olfaction

• Warm the air