Skip to main content

Functional units in rainbow trout (Salmo gairdneri, Richardson) liver: III. Morphometric analysis of parenchyma, stroma, and component cell types.

Publication ,  Journal Article
Hampton, JA; Lantz, RC; Hinton, DE
Published in: The American journal of anatomy
May 1989

Hepatic stroma and parenchyma with its component cell types were quantitatively described in adult male and female actively-spawning 5-year-old rainbow trout (Salmo gairdneri, Richardson). Point-count morphometry of glycol methacrylate sections estimated volume compartments for stroma and parenchyma. Veins composed 85% of the stroma while arteries and bile ducts occupied approximately 6-7% each. Parenchyma accounted for 95% of hepatic volume. Point-count morphometry of transmission electron micrographs estimated volume compartments as well as numerical and surface density measurements for parenchymal components. Within the hepatic parenchymal compartment, hepatocytes occupied 85% and showed significant sex differences. Female hepatocytes were significantly more numerous but were smaller, only 60% of the volume of male hepatocytes. Since hepatocyte nuclear volume was equal in both sexes, differences were due to reduced cytoplasmic volume in females. Perisinusoidal macrophages of females occupied larger volumes of their respective parenchymal compartments, and their larger mean cytoplasmic volumes suggested activation. Biliary epithelial cells of preductules and ductules were numerous. Ratios of numerical density of hepatocytes to biliary epithelial cells were consistent with a tubular arrangement of hepatocytes. Factors possibly mediating the sexual dimorphism are discussed.

Duke Scholars

Published In

The American journal of anatomy

DOI

ISSN

0002-9106

Publication Date

May 1989

Volume

185

Issue

1

Start / End Page

58 / 73

Related Subject Headings

  • Trout
  • Salmonidae
  • Organelles
  • Microscopy, Electron
  • Male
  • Liver
  • Female
  • Epithelium
  • Epithelial Cells
  • Animals
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Hampton, J. A., Lantz, R. C., & Hinton, D. E. (1989). Functional units in rainbow trout (Salmo gairdneri, Richardson) liver: III. Morphometric analysis of parenchyma, stroma, and component cell types. The American Journal of Anatomy, 185(1), 58–73. https://doi.org/10.1002/aja.1001850107
Hampton, J. A., R. C. Lantz, and D. E. Hinton. “Functional units in rainbow trout (Salmo gairdneri, Richardson) liver: III. Morphometric analysis of parenchyma, stroma, and component cell types.The American Journal of Anatomy 185, no. 1 (May 1989): 58–73. https://doi.org/10.1002/aja.1001850107.
Hampton, J. A., et al. “Functional units in rainbow trout (Salmo gairdneri, Richardson) liver: III. Morphometric analysis of parenchyma, stroma, and component cell types.The American Journal of Anatomy, vol. 185, no. 1, May 1989, pp. 58–73. Epmc, doi:10.1002/aja.1001850107.

Published In

The American journal of anatomy

DOI

ISSN

0002-9106

Publication Date

May 1989

Volume

185

Issue

1

Start / End Page

58 / 73

Related Subject Headings

  • Trout
  • Salmonidae
  • Organelles
  • Microscopy, Electron
  • Male
  • Liver
  • Female
  • Epithelium
  • Epithelial Cells
  • Animals