Small Intestine, Pancreas, Large Intestine and Mesenteric Arteries Flashcards
Internal Appearance of the Duodenum of the Small Intestine
1st part: mucosa is smooth
2nd-4th part(s): mucosa and submucosa form numerous folds
In the Duodenum of the small intestine, we have the MAJOR duodenal papilla, which
contains the opening of the hepatopancreatic ampulla and the longitudinal fold of the duodenum.
In the Duodenum of the small intestine, we have the MINOR duodenal papilla, which
contains the opening of accessory pancreatic duct
The Jejunum and ileum of the small intestine both
are freely mobile and attach to the posterior abdominal wll by the mesentary of the small intestine
How many arcades (of the Mesentary) does the Jejunum contain?
1-2
How many arcades (of the Mesentary) does the Ileum contain?
3+
Is the vasa recta (of the mesentary) for the Jejunum long or short?
Long
Is the vasa recta (of the mesentary) for the Ileum long or short?
Short
Describe the circular folds for the Jejunum and Ileum.
Jejunum: Large and many
Ileum: Few and small
How many lymphatic nodules can be in the Peyer’s patches of the mucosa & submusoca of the ileum?
10-200
The _______ makes up 99% of the pancreatic cells.
exocrine portion
The islets of Langerhans (insulin) makes up only ___ of the pancreatic cells.
1%
What glands are associated with the Duodenum? What do they secrete?
Brunner’s glands (of the submucosa) secrete mucus
What are pancreatic acini?
Clusters of exocrine cels
What do the pancreatic acini produce?
Digestive enzymes
What does the Hepatopancreatic Ampulla Sphincter?
Muscle that controls the release of digestive juices?