Small Intestine Flashcards
Lining of the small intestine
Simple columnar epithelium
What is the site where the digestive processes are
completed and the nutrients (products of digestion) are absorbed
small intestine
Permanent semilunar folds of the small intestine mucosa is called? and where it is more prominent ?
plicae circulares
In the jejunum
The mucosal villi of the small intestines are covered with which cells?
covered by a simple columnar epithelium of
absorptive cells called enterocytes, with many interspersed goblet cells.
central lymphatic vessels in the lamina propria of the intestine are called….
Lacteal
Between the villi are the openings of short tubular glands called
crypts of Lieberkühn
The epithelium of the intestinal glands includes
six types of cells which are they…
- Stem cells
- Enterendocrine cells
- Enterocytes,
- Goblet cells,
- Panth cells
- M (microfold) cells.
Which cells increase in number as
we pass down the small intestine, being few in the duodenum and most numerous in the terminal ileum?
Mucus cell
Mucus cell are few in….. and most numerous in…..
the duodenum
the terminal ileum
Stem cells in the intestinal gland are
Pluripotent
Which cell in the intestinal gland has an oval nucleus and apical micro villi ?
Enterocyte
Which structures in the intestine increase the mucosal surface absorption?
Villi, Micro villi, plicae circulares
Which intestinal gland cell that -lays role in the innate immune system and in regulating the micro environments?
Paneth cell
What does paneth cell secrete to break down microorganisms membrane
lysozyme, phospholipids A2, defensins
Hydrophobic peptides
Defensins
