Concept explainers
To list: The different layers of the GI tract wall.
Introduction: Gastro-intestinal (GI) tract is an important part of the
To determine: The type of tissue that is present in each of the layers of the GI tract wall.
Introduction: GI tract begins from the mouth, where the food is ingested into the body and ends at the anus, through which the waste material is removed from the body. This tract is made up of four different layers of tissues.
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- Name the layers of the digestive tract from superficial to deep.arrow_forwardThe esophagus is made up of four basic layers. Arrange them in order from the lumen outward. a) mucosa , submucosa , muscularis externa , and adventitia b) muscularis externa , serosa , mucosa , and submucosa c) serosa , mucosa , submucosa , and muscularis externa d) mucosa , submucosa , muscularis externa , and serosaarrow_forwardOutline the digestive processes of ingestion, digestion, absorption, and elimination and identify how the structures of the GI tract are involved in each process and conditions that would affect the function of each.arrow_forward
- What are the four main tunics of the abdominal GI tract, andwhat is the “default” pattern in each tunic?arrow_forwardWhat covers the surface of the GI tract to increase surface area, absorption and motility?arrow_forwardThe GI tract from the esophagus to the anal canal is composed of four tunics. Describe the general histology of the tunics and the specific features of the esophageal tunics.arrow_forward
- Why are there so many mucin-producing glands along the length of the GI tract?arrow_forwardwhat are the four types of absorption in the GI tract ?arrow_forwardWhat are the major characteristics of the layers (mucosa, submucosa, muscularis externa and adventitia) in eachof the 4 major regions of the GI tract and what does that tell you about the function of each of those sections?arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning