Bile salt from the gall bladder mix with fats to further break them down in a process called emulsification
Explanation
Emulsification involve breakdown of large fat globules into tiny droplet in the duodenum. This provide a large surface area on which the enzyme pancreatic lipase can act to digest the fats into fatty and qlycerol. Emulsification is assisted by action of bile salt where the secreted bile in the liver and stored in the gallbladder is released to the duodenum .