Surfactant! or 'Pulmonary Surfactant' Just had one of those moments too :)
A substance that tends to reduce the surface tension of a liquid in which it is dissolved.
surfactant
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.
surfactants
A substance that interferes with the hydrogen bonding between water molecules and reduces surface tension is called a surfactant. Surfactants contain both hydrophilic and hydrophobic parts that break the cohesive forces between water molecules, thereby lowering surface tension. Examples of surfactants include detergents, soaps, and oils.
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.
Substance tension refers to the force that holds particles together in a substance. It is responsible for the surface tension of liquids, such as water, which causes them to form droplets and create a "skin" on the surface.
A surfactant is a substance that, when mixed with a liquid, reduces its surface tension. There are usually two or more surfactants in a bar of soap.
Surfactant is the substance that greatly reduces the attractive forces among the water molecules lining the alveoli. It is composed of lipids and proteins and plays a crucial role in lowering surface tension, which prevents alveolar collapse and facilitates easier breathing. By reducing surface tension, surfactant helps maintain alveolar stability during the respiratory cycle.
Because of surface tension
Surface tension and surface adsorption occur only on the surface of a substance. Surface tension is the tendency of a liquid surface to shrink into the minimum surface area possible, while surface adsorption is the accumulation of molecules at the surface of a material.
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.