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Gastrointestinal
Pathology for Medical II Students Lab 2b Normal
Jejunal Mucosa continued (65000-00100)
Slide
3
The lower half of the crypts
contains mostly undifferentiated cells with a high mitotic rate. One
mitosis is noted by the arrow. As the villus epithelium of the
intestine is shed, there is upper displacement and differentiation
of cells generated from the undifferentiated basal epithelium. The
entire process of cell division, migration, and maturation takes
about 2-6 days. |
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Slide
4
As the undifferentiated cells of
the crypt migrate up into the villus, they differentiate into the
absorptive cells covered by a microvillus brush border and into
mucin-secreting goblet cells (arrow). Note the lacteal in the
central port of the villus. |
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Digital Legends
for Labs/Cases
Lab 1
1.a | 1.b | 1.c | 1.d | 1.e | 1.f | 1.g | 1.h | 1.i | 1.j | 1.k | 1.l | 1.m
Lab 2
2.a | 2.b | 2.c | 2.d | 2.e | 2.f | 2.g | 2.h | 2.i | 2.j | 2.k | 2.l | 2.m
Lab 3
3.a | 3.b | 3.c | 3.d | 3.e | 3.f | 3.g | 3.h | 3.i | 3.j | 3.k | 3.l
Medical II
Updated
March 2, 2007
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