Small Int, Pancreas, Galbladder Histo Flashcards
Prominent gross feature of small intestine
plicae circularus
increase surface area
Plicacae circularis are folds of
of which layer
submucosa
Villi are present where
small intestine
Villus epithelium of small intestine
cell types
simple columnar
absorbative columnar (enterocytes)
goblet
enteroendocrine
Core of villi made up of
(tissue type)
CT core from lamina propria
Crypt of Lieberkuhn
(intestineal glands)
open at base of villi
paneth cells at base
stem cells ⇒ where mitosis occurs, move up to apex of villi
Villi
vs
Plica
villi: CT of from lapina propria
plicae: submucosal core
Microvilli are present on
enterocyctes
(absorbative cells)
Brush border refers to
microvilli of enterocytes
Distinct feauture of duodenum
Brunner’s glands
secrete alkaline mucus
neutralize from stomach acid in chyme
Brunner’s glands
secrete alkaline mucous
neutralize chyme
found only in duodenum
Peyer’s patches
aggregates of lymphatic nodules
found in ileum
Distinguishing feature of ileum
Peyer’s patches
lymphatic nodules
Most numerous ducts in pancreas
ancinar ducts
⇒ form excretory ducts
Acinar ducts in pancreas produce
entirely serous fluid
zymogens
