0
Fetuses begin to produce surfactant between weeks 24 and 28.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How are septal cells involved in keeping alveoli from collapsing?
They produce surfactant, a substance that reduces surface tension. Alveoli are very small, only 80 nanometers wide, and are flat. Therefore they have a tendency to curl up. The surfactant reduces this tendency, hence keeps the alveoli from collapsing.
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.
Is a surfactant a heterogeneous mixture?
dff
Is a surfactant an emulsifying agent?
Yes
What is the head of a surfactant molecule?
Hydrophilic
Respiratory problems in premature infants may be the result of their inability to produce enough?
surfactant
Function of the uterine horns in pig?
To hold and produce more than one fetuses.
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.
Can fetuses hear?
As early as the beginning of the second trimester, fetuses can hear sounds
How are septal cells involved in keeping alveoli from collapsing?
They produce surfactant, a substance that reduces surface tension. Alveoli are very small, only 80 nanometers wide, and are flat. Therefore they have a tendency to curl up. The surfactant reduces this tendency, hence keeps the alveoli from collapsing.
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.
