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What is the function of the surface of fluid lining the alveolar?
The fluid lining the inner alveolar membrane is called surfactant. It helps reduce the surface tension in the alveoli, which prevents them from collapsing in on themselves every time we exhale.
Which principle normally prevents the alveoli from collapsing during expiration?
cardiac output can be determined by the following formula
What causes IRDS?
Collapsing Alveoli
What keep the alveoli from collapsing?
Alveoli does not collapse because lungs always have a residual volume which prevents the alveoli to collapse.
What is an example of an organism that benefits from reducing surface tension?
Humans benefit greatly from the work of Pulmonary surfactant which reduces the surface tension in the alveoli of the lungs. This reduction in alveolar surface tension prevents the alveoli from collapsing and thus causing suffocation.
What do septal cells do?
they are involved in keeping alveoli from collapsing
The condition of newborns called respiratory distress syndrome is caused by?
RDS is caused by deficiency of surfactant a substance which lowers surface tension and prevents the alveoli from collapsing. It is common in premature babies.
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.
Surfactant helps to prevent the alveoli from collapsing by what?
Interfering with the cohesiveness of water molecules, thereby reducing the surface tension of alveolar fluid.
What prevents galaxies from collapsing under their own weight?
Their rotation.
What holds the trachea open and prevents it from collapsing?
Rings of cartilage.
What is the protein fat compound that creates surface tension and keeps the walls of the alveoli from collapsing?
Surfactant
