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Copyright  2001 McGraw-Hill
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Student Center Understanding Human Anatomy and Physiology
Fourth Edition
Sylvia S. Mader
Student Center

Chapter 15: The Digestive System

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 Chapter Objectives

After you have studied this chapter, you should be able to:

Digestive System (p. 297)

  • Trace the path of food in the digestive tract, and describe the general structure and function of each organ mentioned.
  • Describe peristalsis, and state its function.
  • Describe the wall of the small intestine, and relate its anatomy to nutrient absorption.
  • Name the hormones produced by the digestive tract that help control digestive secretions.
  • Name the accessory organs of digestion, and describe their contributions to the digestive process.

Mechanical and Chemical Digestion (p. 310)

  • Name two structures which are involved in mechanical digestion.
  • Name and state the functions of digestive enzymes for carbohydrates, proteins, and fats.

Nutrition (p. 310)

  • State the functions of glucose, fats, and amino acids in the body.
  • Define the terms essential fatty acid, essential amino acid, and vitamin.
  • Describe the functions of major vitamins and minerals in the body.

Effects of Aging (p. 316)

  • Anatomical and physiological changes occur in the digestive system as we age.

Working Together (p. 316)

  • The digestive system works with other systems of the body to maintain homeostasis.

Medical Focus

  • Viral Hepatitis (p. 306)
  • Human Teeth (p. 311)
  • Antioxidants (p. 313)


  • Constipation (p. 308)


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