Respiratory System
Which of the following is NOT a conducting zone action?
Clean air of debris, conduct air into the lungs, add water to air, warm air.
Which of the following is NOT a factor that determines the rate of pulmonary and systemic gas exchange?
All of these are factors that determine the rate of pulmonary and systemic gas exchange
Which of the following is the primary gas exchange site?
Alveolus
The gas law that describes the pressure changes that occur during pulmonary ventilation is?
Boyle's Law
The point where the trachea divides into right and left primary bronchi is a ridge called
Carina
Which of the following is the dominant method of carbon dioxide transport?
Dissolved is plasma as bicarbonate ions
Which structure prevents food or water from entering the trachea?
Epiglottis
Exhalation begins when
Inspiratory muscles relax
Which of the following is NOT a factor that affects pulmonary ventilation?
Lung compliance, surface tension of alveolar fluid, elastic recoil of the chest wall and lungs, airway resistance
Which of the following indicates the direction of diffusion of gases at the alveoli of the lungs?
Oxygen into blood, Carbon dioxide out of blood
Which of the following is a passageway for air, food and water?
Pharynx
Which of the following is a factor that does NOT affect hemoglobin's affinity for oxygen?
Respiratory rate
Which of the following is NOT part of the upper respiratory system?
Trachea
Which structure is located anterior to the esophagus and carries air to the bronchi?
Trachea
Which of the following are cells of the alveoli that produces surfactant?
Type II alveolar cells
Which of the below tissue provides the functions of the inner layer of the conducting organs?
ciliated pseudostratified columnar epithelium with goblet cells
When blood pH drops, the amount of oxyhemoglobin____ and oxygen delivery to the tissue cells ____.
decreases, increases
Which of the following is NOT a factor that the rate of pulmonary and systemic gas exchange depends on?
force of contraction of diaphragm
Which of the following is the sum of the residual and the expiratory reserve volume?
functional residual capacity
Which of the below tissues maintains open airways in the lower respiratory system?
hyaline cartilage
Which of the below tissues forms the exchange surfaces of the alveolus?
simple squamous epithelium