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Ch 10: Anatomy of the Digestive System

About This Chapter

In these lessons, find out important details about the anatomy of the digestive system. Run memory drills to learn digestive system vocab words, or use the chapter to study for an upcoming exam, complete homework assignments, or to get better grades.

Anatomy of the Digestive System - Chapter Summary

The human body consists of multiple systems, with each system running around the clock as we perform our daily activities. These lessons provide focused information concerning the anatomy of the digestive system, including details about the functions and structures of the different parts within this system. By successfully going through or reviewing this chapter, you should be all set to do the following:

  • Explain the basic functions of the upper and lower gastrointestinal tracts
  • Point out the three main types of movement occurring in the small intestine
  • Review the role of the small intestine concerning nutrient absorption
  • Show the functions of the large intestine and the rectum
  • Determine how water absorption occurs within the large intestine

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5 Lessons in Chapter 10: Anatomy of the Digestive System
Digestive System I: The Upper Gastrointestinal Tract

1. Digestive System I: The Upper Gastrointestinal Tract

Did you know that there are digestive enzymes in your saliva? It's true. As soon as you put a piece of food in your mouth, the digestive process begins. Join us with this first of two lessons about the human digestive system, where we'll follow food through the upper gastrointestinal tract from the mouth through the stomach.

Digestive System II: The Lower Gastrointestinal Tract

2. Digestive System II: The Lower Gastrointestinal Tract

The lower gastrointestinal tract is the part of the digestive system that is responsible for the last part of food digestion and the expulsion of waste from the body. In this lesson, we'll look at each part of the system and what functions each serves in the process of digestion.

Movement Through the Small Intestine: Peristalsis, Segmentation & Pendular Movement

3. Movement Through the Small Intestine: Peristalsis, Segmentation & Pendular Movement

The small intestine is an important organ for digestion and absorption of nutrients. In this lesson, you will learn about the enterogastric reflex. You will also learn how intestinal movements, such as peristalsis, segmentation, and pendular movement, improve digestion and absorption.

Small Intestine: Nutrient Absorption and Role In Digestion

4. Small Intestine: Nutrient Absorption and Role In Digestion

The majority of digestion and absorption of nutrients takes place in the small intestine. In this lesson, you will learn about unique modifications within the walls of the small intestine, such as microvilli, villi, and circular folds. These structures increase absorption of nutrients.

Rectum, Functions of the Large Intestine & Water Absorption

5. Rectum, Functions of the Large Intestine & Water Absorption

The large intestine is the final processing area for digested food. In this lesson, you will learn how the large intestine removes water from undigested food and prepares for the elimination of feces through the anus.

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