Structure and Function of the Vertebrate
The digestive tract of vertebrates is a tubular gut that runs from mouth to anus (Figure 50.10). The vertebrate gut can be divided into several compartments that are specialized for different digestive and absorptive functions. In addition, several accessory structures produce compounds that contribute to the digestive process and release them into the gut.
Parotid salivary gland
Mouth
Liver
50.10 The Human Digestive System Different compartments within the long tubular gut specialize in digesting food, absorbing nutrients, and storing and expelling wastes. Accessory organs contribute secretions containing enzymes and other molecules.
Parotid salivary gland
Esophagus
Diaphragm
Liver
Gallbladder
Large intestine (colon)
Appendix
Tongue
Teeth
Sublingual and submandibular salivary glands
Stomach Pancreas
Ileum
Rectum
Gallbladder
Large intestine (colon)
Appendix
Tongue
Teeth
Sublingual and submandibular salivary glands
Stomach Pancreas
Duodenum
Jejunum
Ileum
Rectum
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Essentials of Human Physiology
This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.
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