Stomach And Duodenum Flashcards
The GI tract is essentially a hollow tube consisting of four concentric layers of tissue.
What are those layers?
What layer consist of and epithelium supported by loose connective tissue of the laminate propria and a thin band of smooth muscle called the muscularis mucosae?
This layer provides connective tissue support for the mucosa.
It contains the primary vascular and lymphatic channel, lymphoid follicles, and autonomic nerve plexuses.
It is the major muscular structure of the bowel wall.
It is the outer covering of the bowel.
Serosa or adventitious
Where is the lymphoid tissue in the GI tract located?
Mucosa (epithelium and lamina propria), the submucosa, and mesenteric lymph nodes
It refers to the region of the gastroesophageal junction.
It is the portion of the stomach above the level of the GEJ.
The body of the stomach is the central two-thirds portion from the cardia to the ________.
It is the acute angle formed from the lesser curvature that marks the boundary between the body and the antrum.
The parietal cells, which produce hydrochloric acid, and the chief cells, which produce pepsin precursors, are located where?
In the fundus and body
The antrum is the distal one-third of the stomach and contains what cells?
Contains gastrin-producing cells but no acid secreting cells
It is the junction of the stomach with the duodenum.
The pyloric canal is the channel through the pylorus
It is the pyrimidal first portion of the duodenum.
The duodenal bulb or cap
The gallbladder frequently makes a prominent impression on top of the bulb.
The duodenal bulb, like the stomach, is covered on all surfaces by visceral peritoneum.
The remainder of the duodenum is retroperitoneal.
Within what retroperitoneal compartment?
Anterior pararenal compartment