The Renaissance: A Creative Change in Art. The Renaissance period -- that spanned roughly from the 14th century to the 17th century -- was a time for change and movement in society.
Video: Lipids Digestion and Absorption. Lipids, or fats, are digested and absorbed in the small intestine. In this lesson you will learn how bile salts emulsify fat so pancreatic lipase can digest it. You will also learn how fats first enter lymphatic capillaries, called lacteals, before entering your blood circulation.
Secretion of Bile and the Role of Bile Acids In Digestion. Bile is a complex fluid containing water, electrolytes and a battery of organic molecules including bile acids, cholesterol, phospholipids and bilirubin that flows through the biliary tract into the small intestine. Secretin: This hormone is secreted in response to acid in the duodenum. 2  Its effect on the biliary system is very similar to what was seen in the pancreas-it simulates biliary duct cells to secrete bicarbonate and water, which expands the volume of bile and increases its flow out into the intestine.