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Questions and Answers
What is the primary function of the digestive system?
What is the primary function of the digestive system?
Which of the following is NOT a part of the digestive tract?
Which of the following is NOT a part of the digestive tract?
What is the main site of water and electrolyte absorption in the digestive system?
What is the main site of water and electrolyte absorption in the digestive system?
What are the molecules broken down into during digestion?
What are the molecules broken down into during digestion?
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What is another name for the digestive system?
What is another name for the digestive system?
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Study Notes
The Digestive System
- The digestive system consists of the digestive tract (oral cavity, esophagus, stomach, small and large intestines, and anus) and associated glands (salivary glands, liver, and pancreas).
- Also referred to as the gastrointestinal tract (GIT) or alimentary canal.
Function of the Digestive System
- The primary function is to obtain necessary molecules from ingested food for the body's maintenance, growth, and energy needs.
Digestion Process
- Proteins, complex carbohydrates, nucleic acids, and fats are broken down into small molecule subunits during digestion.
- These subunits are easily absorbed through the small intestine lining.
Absorption of Water and Electrolytes
- Most water and electrolytes are absorbed in the large intestine.
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Description
The human digestive system, also called the gastrointestinal tract, breaks down food into smaller molecules for energy, growth, and maintenance. It consists of the digestive tract and associated glands.
