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What causes static compliance to decrease?
Static compliance decreases due to factors like pulmonary fibrosis, lung tissue scarring, or poor surfactant function which results in reduced ability of the lungs to stretch and expand during inhalation, leading to decreased lung capacity and restricted airflow.
Is tridecyl stearate a surfactant?
No, tridecyl stearate is not a surfactant. It is a waxy ester commonly used as an emollient and thickening agent in skincare and cosmetics.
Is surfactant a problem in the pleural cavity?
Surfactant is a fluid secreted by alveolar cells in the lungs to reduce surface tension and prevent collapse. Surfactant is not typically present in the pleural cavity, and its presence there could indicate a medical issue such as lung injury or infection.
When do fetuses begin to produce surfactant?
Fetuses begin to produce surfactant in their lungs around 24-28 weeks of gestation, and its production increases as the pregnancy progresses. Surfactant is necessary for lung development and function by reducing surface tension in the alveoli, allowing for proper expansion and preventing collapse.
What effect did the addition of peptidase to the starch have. Why?
The addition of peptidase to starch would not have a direct effect, as peptidase specifically breaks down proteins into peptides. Starch is a carbohydrate and would not be directly affected by peptidase.
What effect does a deficiency of surfactant exert on lung compliance?
Increased compliance result
Why does surfactant affect airflow?
Surfactant improves airflow in several ways. First, it maintains airway stability by preventing airway film collapse of the airway walls. Second, surfactant modulates airway wall thickness and diameter by regulating liquid balance. In other words, the dysfunction of surfactant airways might be one of the mechanisms leading to increased airway resistance [seen in in obstructive lung diseases].Source:J Hohlfeld, H Fabel, and H Hamm. The role of pulmonary surfactant in obstructive airways disease.Eur Respir J 1997; 10: 482-491http://www.ersj.org.uk/cgi/content/abstract/10/2/482
As a result of the tidal volume change what happens to the flow into each lung and total air flow?
Airflow increases when surfactant is applied because the resistance to lung inflation has been reduced.
Does surfactant affect airflow?
Surfactant improves airflow in several ways. First, it maintains airway stability by preventing airway film collapse of the airway walls. Second, surfactant modulates airway wall thickness and diameter by regulating liquid balance. In other words, the dysfunction of surfactant airways might be one of the mechanisms leading to increased airway resistance [seen in in obstructive lung diseases].Source:J Hohlfeld, H Fabel, and H Hamm. The role of pulmonary surfactant in obstructive airways disease.Eur Respir J 1997; 10: 482-491http://www.ersj.org.uk/cgi/content/abstract/10/2/482
What changes the direction of airflow and is caused by earths rotation?
The coriolis effect
Will round computer cables improve the airflow around the chassis of the pc?
The shape of tyhe computer cable will have very little effect onthe airflow.
What do surfactant do?
A surface-active agent 'surfactant' usually cleans something. ie -soap is a surfactant.
Effect of filter media density on it performance?
The denser the media the less airflow through it.
Surfactant that cover the respiratory membranes?
Surfactant is pleural fluid.
What does a surfactant do?
The main function or job of a surfactant is to reduce surface tension. This process is used on liquids while it dissolves.
How effective is surfactant therapy?
Normally surfactant replacement therapy keeps the infant alive until the lungs start producing their own surfactant.
Suppose you're a physician treating an infant with respiratory distress syndrome What if your intervention to effect relief of the baby's symptoms will involve?
An artificial surfactant
