Respiratory System

The passageways of the respiratory system include all of the following structures EXCEPT:

• A. Pharynx

• B. Larynx

• C. Trachea

• D. Esophagus

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

• allow air to reach the lungs

• humidify air

• exchange gasses

• warm incoming air

Speech results from exhaled air causing vibration of:

• Pharynx

• vocal cords

• Epiglottis

• trachea

Cilia in the trachea continually propel contaminated mucus:

• A. toward the pharynx to be swallowed

• B. toward the mouth to be digested

• C. toward the nose to be sneezed out

• D. toward the larynx to be coughed out

Which of the following statements about the lungs is NOT true?

• the narrow portion of each lung is called the apex

• the base rests on the diaphragm

• the right lung has three lobes

• they are the only major organ in the thoracic cavity

The exchange of air that occurs between the alveoli and the pulmonary capillaries is:

• internal respiration

• pulmonary ventilation

• Inspiration

• external respiration

Which of the following is NOT one of the four events of respiration?

• Pulmonary Ventilation – breathing, moves air into and out of lungs

• Hyperventilation – shallow breathing that often occurs after trauma or surgery

• Respiratory Gas Transport – O2 and CO2 are carried by the blood

• External Respiration – exchange of gasses between alveoli and the blood

Which one of the following statements is NOT accurate regarding the lungs?

• A. each one is about the size of a softball

• B. divided into sections called lobes

• C. located in the thoracic cavity

• D. contain millions of alveoli

Which of the following statements correctly describes the mucus membranes of the respiratory tract?

• A. warm, moist, lined with cilia

• B. cool, dry

• C. warm, dry, lined with cells that secrete mucus

• D. cool, moist, with many capillaries

Which of the following is NOT a function or accurate description of the larynx?

• houses the vocal cords

• leads to the esophagus

• connects the pharynx to the trachea

• composed of cartilage