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Pharmacology for Nurses

Introduction

Pharmacology for NursesIntroduction
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Figure 29.1 The digestive system breaks down food into nutrients that can be absorbed into the bloodstream to give the body energy and the ability to grow and repair itself. (attribution: Copyright Rice University, OpenStax, under CC BY 4.0 license)

Chapter Outline

29.1 Introduction to the Gastrointestinal System and Oral Cavity
29.2 Introduction to the Esophagus and Stomach
29.3 Introduction to the Small and Large Intestines

Introduction

The digestive system is continuously at work, yet people seldom appreciate the complex tasks it executes in a choreographed biologic performance. Eating may be one of the simple pleasures in life, but digesting even one apple requires the coordinated work of many organs. This chapter will introduce the digestive system and some common conditions that can alter any one of its functions.

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© Jan 7, 2026 OpenStax. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo are not subject to the Creative Commons license and may not be reproduced without the prior and express written consent of Rice University.