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Capillary Distribution in the Lateral Muscle of Axolotl ( Ambystoma mexicanum Shaw)
Author(s) -
Totland Geir K.
Publication year - 1984
Publication title -
acta zoologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.414
H-Index - 37
eISSN - 1463-6395
pISSN - 0001-7272
DOI - 10.1111/j.1463-6395.1984.tb01043.x
Subject(s) - ambystoma mexicanum , axolotl , anatomy , biology , capillary action , ultrastructure , biophysics , materials science , composite material , regeneration (biology) , microbiology and biotechnology
The vascular supply of red, intermediate and white fibres in the axial muscle of axolotl ( Ambystoma mexicanum Shaw) was visualized with Indian ink‐injections and quantified with morphometrical methods on semithin sections. Red fibres were surrounded by 1.4 ± 0.6 capillaries (mean + SD), the intermediate fibres by 1.2 ± 0.9 capillaries and white fibres by 0.3 ± 0.6 capillaries. The mean vascularized surface area per unit volume of fibre was 0.0159, and 0.0068 and 0.0007 (μm 2 /μm 3 ) for red, intermediate and white fibres, respectively. A unit volume of mitochondria within each type of fibre was supplied by 0.15, 0.17 and 0.08 μm 2 vascularized surface for red, intermediate and white fibres, respectively. This indicates that there exist a good balance between oxygen demand represented by mitochondrial content and oxygen supply represented by the vascularized surface.