WorksheetsRespiratory Physiology
Total questions: 12
Worksheet time: 12mins
Which of the following is a factor on which expiration depends?
Decrease in the intrapulmonary pressure
Contraction of expiratory muscles
Increasing in lung volume
Recoil of elastic tissue in the lungs
O2 and CO2 are exchanged in the lungs and through all the cell membranes by_______.
Filtration
Diffusion
Active Transport
Osmosis
Surfactant helps to prevent the alveoli from collapsing by _______.
Protecting the surface of alveoli from dehydration and other environmental variations
Interfering with cohesiveness of water molecules, thereby reducing the surface tension of alveolar fluid
Increasing the surface tension inside the lungs
Humidifying the air before it enters
Pulmonary ventilation refers to the
Movement of air into and out of the lungs.
Movement of dissolved gases from the interstitial space to the cells.
Movement of dissolved gases from the alveoli to the blood.
Utilization of oxygen.
Choose the correct statement regarding airway resistance.
Bronciodiation leads to an increase in airway resistance.
Bronchioconstriction leads to an increase in airway resistance.
Airway resistance is a measure of how much effort is required to stretch the lungs.
An obstruction within the bronchi, like an infection, will decrease airway resistance.
Which of the choices below determines the direction of respiratory gas movement?
Partial pressure gradient
The temperature
Solubility in water
Size of the gas molecules
Complete the following statement using the choices below.
Air moves out of the lungs when the pressure inside the lungs is_____.
Greater than the pressure in the atmosphere.
Equal to the pressure in the atmosphere.
Less than the pressure in the atmosphere.
Which describes the goal of external respiration?
Carbon dioxide loading into the blood, oxygen leaving the blood and entering the tissues.
Oxygen and carbon dioxide loading into the blood.
Oxygen loading into the blood, carbon dioxide going from the blood into the alveoli.
Oxygen loads into the cell and carbon dioxide leaves the cells.
What cells clean and digest debris entering the alveoli?
Type II Alveolar Cells
Type I Alveolar Cells
Fluid Cells
Alveolar Macrophages
Is the following statement true or false?
In the blood, the majority of carbon dioxide is carried bound to the globin portion of the hemoglobin as carbaminohemoglobin in the RBCs.
True
False
Is the following statement true or false?
As lung volume increases, the intrapulmonary pressure decreases.
True
False
Is the following statement true or false?
The air entering our lungs makes our lungs larger.
True
False
