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Questions and Answers
What is the basic histological organization of the gastrointestinal (GI) tract mucosa?
What is the basic histological organization of the gastrointestinal (GI) tract mucosa?
- An epithelial cell layer supported by a thick layer of connective tissue
- An epithelial cell layer supported by a thin layer of connective tissue known as the lamina propria (correct)
- A muscular layer composed of smooth muscle cells
- An outer longitudinal layer composed of connective tissue
Which organ is considered an accessory structure of the digestive system?
Which organ is considered an accessory structure of the digestive system?
- Small intestine
- Liver (correct)
- Large intestine
- Stomach
What is the main function of the muscularis externa in the gastrointestinal (GI) tract?
What is the main function of the muscularis externa in the gastrointestinal (GI) tract?
- Production of digestive enzymes
- Absorption of nutrients
- Secretion of mucus
- Facilitation of peristalsis (correct)
Which part of the gastrointestinal (GI) tract contains an inner circular layer and outer longitudinal layer of muscle?
Which part of the gastrointestinal (GI) tract contains an inner circular layer and outer longitudinal layer of muscle?
What is the role of the submucosa in the gastrointestinal (GI) tract?
What is the role of the submucosa in the gastrointestinal (GI) tract?
True or false: The gastrointestinal tract (GI tract) is not a continuous tube extending through the ventral cavity from the mouth to the anus.
True or false: The gastrointestinal tract (GI tract) is not a continuous tube extending through the ventral cavity from the mouth to the anus.
True or false: The submucosa of the GI tract contains arteries, veins, lymphatics, and nerves.
True or false: The submucosa of the GI tract contains arteries, veins, lymphatics, and nerves.
True or false: The muscularis externa of the GI tract is composed of two muscle layers, the inner longitudinal layer and outer circular layer.
True or false: The muscularis externa of the GI tract is composed of two muscle layers, the inner longitudinal layer and outer circular layer.
True or false: The serosa is a part of the basic histological organization of the mucosa of the GI tract.
True or false: The serosa is a part of the basic histological organization of the mucosa of the GI tract.
True or false: The mouth and oropharynx are considered as accessory structures of the digestive system.
True or false: The mouth and oropharynx are considered as accessory structures of the digestive system.
What are the two main groups of organs in the digestive system?
What are the two main groups of organs in the digestive system?
What are the components of the mucosa that surrounds the lumen of the GI tract?
What are the components of the mucosa that surrounds the lumen of the GI tract?
What is the specific movement that the two muscle layers of the muscularis externa in the GI tract form the basis of?
What is the specific movement that the two muscle layers of the muscularis externa in the GI tract form the basis of?
What does the submucosa of the GI tract contain?
What does the submucosa of the GI tract contain?
Name one organ included in the accessory structures of the digestive system.
Name one organ included in the accessory structures of the digestive system.
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