Vasculature of the fish gill: Anatomical correlates of physiological functions

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The fish gill is a multifunctional organ responsible for respiration, osmoregulation, acid base balance, nitrogen excretion, and metabolism of circulating hormones. Two or more microcirculatory systems subserve these activities and form one of the most complex vascular networks found in any vertebrate. In this article the vascular anatomy of the teleost gill and the role of gill vessels in mediating physiological function are examined. Vascular corrosion replication techniques have been instrumental in resolving the spatial organization of gill microcirculation. Variations in the replication procedures provide information on the interrelationships between the vascular pathways, factors that govern flow distribution, and the physical characteristics of the vessels themselves. Anatomically, gill vessels are as diverse as their physiological functions. Pillar cells, unique to the fish gill, form the lining of the respiratory vasculature and may have substantial metabolic effects on circulating hormones. The non-respiratory pathways appear to be lined with both typical and unusual endothelial cells, although the fine structure and function(s) of these vessels are largely unknown. To date most of the information on gill vessels has been derived from descriptive morphological studies. Further evaluation of the anatomical and physiological correlations of these tissues is predicated upon the application of histocytochemical, morphometric, and other quantitative methodologies as well as an examination of gills from fish with various evolutionary and environmental backgrounds.

Original languageEnglish (US)
Pages (from-to)389-405
Number of pages17
JournalJournal of Electron Microscopy Technique
Volume19
Issue number4
DOIs
StatePublished - 1991

Fingerprint

fishes
Fish
vessels
Fishes
Hormones
hormones
Microcirculation
Endothelial cells
Blood Vessels
Linings
Metabolism
excretion
vertebrates
Tissue
Corrosion
anatomy
Nitrogen
respiration
metabolism
linings

Keywords

  • Acid base balance
  • Microcirculation
  • Osmoregulation
  • Respiration

ASJC Scopus subject areas

  • Anatomy

Cite this

Vasculature of the fish gill : Anatomical correlates of physiological functions. / Olson, Kenneth.

In: Journal of Electron Microscopy Technique, Vol. 19, No. 4, 1991, p. 389-405.

Research output: Contribution to journalArticle

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