Editing Surfactant (section)

==In biology==
{{further|Pulmonary surfactant}}
[[Image:1-Oleoyl-2-almitoyl-phosphatidylcholine Structural Formulae V.1.png|thumb|300px|[[Phosphatidylcholine]], found in lecithin, is a pervasive biological surfactant. Shown in {{color|#800000|red}} – [[choline]] and [[phosphate]] group; {{color|#000000|black}} – [[glycerol]]; {{color|#008000|green}} – [[monounsaturated fatty acid]]; {{color|#000080|blue}} – [[saturated fatty acid]].]]

The human body produces diverse surfactants. [[Pulmonary surfactant]] is produced in the [[lung]]s in order to facilitate breathing by increasing [[total lung capacity]], and [[lung compliance]]. In [[Respiratory distress syndrome, adult|respiratory distress syndrome]] or RDS, [[Pulmonary surfactant (medication)|surfactant replacement]] therapy helps patients have normal respiration by using pharmaceutical forms of the surfactants. One example of a pharmaceutical pulmonary surfactant is Survanta ([[beractant]]) or its generic form Beraksurf, produced by [[AbbVie Inc.|Abbvie]] and [[Tekzima]] respectively. [[Bile salts]], a surfactant produced in the liver, play an important role in digestion.<ref>{{cite journal|doi=10.1016/j.cis.2010.12.002|pmid=21236400|title=The role of bile salts in digestion|journal=Advances in Colloid and Interface Science|volume=165|issue=1|pages=36–46|year=2011|last1=Maldonado-Valderrama|first1=Julia|last2=Wilde|first2=Pete|last3=MacIerzanka|first3=Adam|last4=MacKie|first4=Alan}}</ref>