Question

The small intestine is divided into three sections. Name as many of them as you can for one point each. Zero total if you get any wrong.

Answer 1

The small intestine is divided into three sections: the duodenum, the jejunum, and the ileum, each with specific functions in digestion and absorption.

Step-by-step explanation:

Sections of the Small Intestine

The small intestine is divided into three distinct sections which play a crucial role in the digestion and absorption of nutrients. These are:

1. Duodenum: the first and shortest section, where most chemical digestion occurs.
2. Jejunum: the second section, approximately 0.9 meters (3 feet) in length, responsible for the majority of nutrient absorption.
3. Ileum: the third and final section, which continues the process of nutrient absorption and connects to the large intestine.

Each of these parts has mucosa that is covered in folds called villi and microvilli, significantly increasing the surface area for absorption.