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CHAPTER 15 - LIVER AND GALLBLADDER
Histology Guide
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MICROSCOPE SLIDE

SLIDE NAME
MH 130a Gallbladder
TISSUE
Gallbladder
(human)
STAIN
Hematoxylin & Eosin
FIXATIVE
Zenker's Formaldehyde
IMAGE SIZE
32,980 x 38,432 pixels
4.7 GB
FILE SIZE
125 MB
OBJECTIVE
40x
PIXEL SIZE
0.3171 µm
SOURCE
Department of Genetics, Cell Biology, and Development
School of Medicine
University of Minnesota
Minneapolis, MN

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Robert L. Sorenson, Ph.D.

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University of Minnesota
Department of Genetics, Cell Biology and Development
6-160 Jackson Hall
321 Church St SE
Minneapolis, MN 55455

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MH 130a Gallbladder

Gallbladder

The gallbladder is the storage vessel for bile. Its is composed of the following layers:

  • (or mucous membrane) - the empty bladder has numerous deep folds (or rugae) often resulting in the appearance of .
    • - similar in appearance to absorptive cells in the intestines.
    • - dense irregular connective tissue that supports the epithelium. It is rich in fenestrated capillaries and small venules.
  • - randomly oriented bundles of smooth muscle containing numerous collagen and elastic fibers. Its contraction results in emptying of the gallbladder.
  • Outer Layer of Connective Tissue - composition depends on its location.
    • Adventitia - where the gallbladder attaches to the liver. It is composed of dense irregular connective tissue.
    • - where the gallbladder is unattached to the liver. It is composed of a surface layer of mesothelium supported by loose connective tissue.

Despite its origin from the foregut, the gallbladder does not have a muscularis mucosae or submucosa.

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