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type II alveolar cells
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∙ 13y ago
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What do Type 2 alveolar cells secrete?
secrete surfactant
What is affected by cystic fibrosis?
The lungs (pulmonary surfactant is missing or diminished).
What is the lipid-based molecule called that coats the air-exposed surface of the alveolus?
Surfactant
When surfactant is added what happens to the tidal volume?
FEV1 percentage decreases as the radius of the airway is decreased.
What is the protein fat compound that creates surface tension and keeps the walls of the alveoli from collapsing?
Surfactant
What is the difference between mucus surfactant and pleural fluid?
Surfactant is when your mum produces something bad into the mouth of your daddy
What two factors prevent the lungs from collapsing?
surfactant- the substance that your lungs produces. Also continuous pressure from the air in there.
The developing fetus does not produce lung surfactant until late its development.Explain what problem a premature infant would have if it were born before it had produced surfactant?
The lung surfactant is a substance that coats the internal surfaces of the alveoli (air sacks) of the lungs and prevents them from sticking together in the deflated state when the baby exhales. If the infant is born before it produces lung surfactant, then the alveoli will be unable to be filled with air and the baby will suffocate.
What do surfactant do?
A surface-active agent 'surfactant' usually cleans something. ie -soap is a surfactant.
Surfactant that cover the respiratory membranes?
Surfactant is pleural fluid.
What is the interfacial properties of surfactant solution?
What is the interfacial properties of surfactant solution?
What do Type 2 alveolar cells secrete?
secrete surfactant
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.
Which surfactant lacks in a new born baby?
I have never heard the surfactant called anything specific. Full term babies usually have surfactant (a mixture of lipids (fats) and proteins). Premature babies many times do not have enough surfactant to keep the alveoli of their lungs open, so artificial surfactant is put into the trachea, sometimes more than once.
Why does oil miscible in solution of surf and water?
Presumably you mean surfactant and water? A classic surfactant molecule has a polar, hydrophilic end and a non-polar hydrocarbon liophilic end. With enough of a suitable surfactant, oil droplets will form with the liophilic part of surfactant molecules dissolved in the droplets and water molecules attached to the hydrophilic part of the surfactant. The oil disperses in the water.
When do fetuses begin to produce surfactant?
Fetuses begin to produce surfactant between weeks 24 and 28.
