Modeling Body Systems Quick Check 2 of 52 of 5 Items Question Where does most of the absorption of nutrients occur?(1 point) Responses stomach stomach mouth mouth small intestine small intestine large intestine
small intestine
Most of the absorption of nutrients occurs in the small intestine.
To determine where most of the absorption of nutrients occurs, we need to understand the anatomy and function of the digestive system. The digestive system starts with the mouth, where food is broken down and mixed with saliva. Next, the food travels down the esophagus and reaches the stomach.
The stomach is not primarily responsible for nutrient absorption. Instead, its main function is to break down food further and mix it with digestive juices. After leaving the stomach, partially digested food enters the small intestine.
The small intestine is the primary site for nutrient absorption in the digestive system. It consists of three parts: the duodenum, jejunum, and ileum. The inner walls of the small intestine are lined with finger-like projections called villi, which greatly increase the surface area available for absorption. Nutrients, such as carbohydrates, proteins, fats, vitamins, and minerals, are absorbed through the lining of the small intestine into the bloodstream.
After passing through the small intestine, the remaining indigestible materials move into the large intestine. The large intestine's main function is to reabsorb water and electrolytes, resulting in the formation of feces.
Considering this information, the correct answer is: small intestine.