Questions and Answers
Which of the following is NOT part of the alimentary canal?
Gallbladder
Which of the following is an accessory digestive organ?
Salivary glands
What is the function of the teeth in the digestive process?
To break down food into smaller pieces
Which of the following organs produces digestive enzymes?
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What is the role of the liver in the digestive process?
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What type of enzymes does the stomach secrete to aid in food digestion?
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What is the purpose of the strong acids in the stomach?
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Where does the stomach send the partially digested food?
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What is the role of the stomach in the digestive process?
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What is the result of the stomach's action on food?
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What is the primary function of the esophagus in the upper gastrointestinal tract?
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What type of contractions aid in the movement of food through the esophagus?
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Which structure does the esophagus connect to receive food?
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What is the esophagus composed of?
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Where does the esophagus transport food to?
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What is the primary function of the microvilli in the jejunum?
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Which part of the intestine connects the duodenum to the ileum?
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What is the jejunum responsible for in the digestive process?
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The jejunum is a part of which system?
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What is the structure of the jejunum adapted to increase?
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What is the primary function of the digestive enzymes in the digestive process?
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What is the purpose of the bicarbonate in pancreatic juice?
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What is the function of Brunner's glands in the duodenum?
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What is the result of the emulsification of fats into micelles?
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What is the primary role of the pancreatic juice in the digestive process?
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Study Notes
The Alimentary Canal
- Consists of mouth, pharynx, esophagus, stomach, small intestine, and large intestine
Accessory Digestive Organs
- Include teeth, tongue, gallbladder, salivary glands, liver, and pancreas
Upper Gastrointestinal Tract
- Includes the esophagus, a fibromuscular tube that food passes through aided by peristaltic contractions
- Food passes from the pharynx to the stomach through the esophagus
Stomach Function
- Secretes protein-digesting enzymes called proteases
- Secretes strong acids to aid in food digestion
- Partially digested food is sent to the small intestine
Digestive Enzymes
- Break down proteins
- Break down bile
- Emulsify fats into micelles
Duodenum Function
- Contains Brunner's glands that produce bicarbonate
- Contains pancreatic juice that contains bicarbonate to neutralize hydrochloric acid in the stomach
Jejunum Function
- Midsection of the intestine connecting the duodenum to the ileum
- Contains microvilli to increase the surface area of the GI tract
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