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The sustance that reduces surface tensin in the alveoli is?
Surfactant is a substance which lines the inside of alveoli. It is composed of a phospholipid bilayer, which have hydrophyllic and hydrophobic properties. This allows it to reduce surface tension.
What determines lung compliance?
Lung compliance is determined by the elasticity of the lung tissue and the surface tension of the alveoli. Compliance decreases with conditions that stiffen the lung tissue, such as fibrosis, or increase surface tension, such as pulmonary edema. Compliance also decreases with aging and certain diseases like chronic obstructive pulmonary disease (COPD).
What is the serous fluid reduces surface tension?
Surfactants, which are molecules that lower surface tension, can be found in serous fluid. These molecules help prevent alveoli in the lungs from collapsing by reducing the surface tension of the fluid lining the alveoli.
Effect of Temperature on Surface Tension?
surface tension decreases with the increase of temperature
How does temperature affect surface tension?
As the temperature rises, surface tension decreases.
The surface tension exerted by water in the alveoli prevent collapse of the alveoli during exhalation?
False
What does alcohol do to surface tension?
it decreases it.
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.
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 the effect of increase of temperature on surface tension?
An increase in temperature typically decreases surface tension in liquids. This is because higher temperature leads to increased molecular motion, which weakens the intermolecular forces responsible for surface tension.
Reduces the surface tension of the fluid in the alveoli?
Surfactant, a substance produced by type II alveolar cells in the lungs, reduces the surface tension of fluid in the alveoli. This helps to prevent the collapse of alveoli during expiration and facilitates the exchange of gases in the lungs.
What happens to the surface tension of a liquid when it is heated?
As a liquid is heated, its surface tension typically decreases. This is because the increased thermal energy disrupts the intermolecular forces at the surface of the liquid, causing the molecules to spread out and reducing the cohesive forces that create surface tension.
