Comparative extraocular muscle blood flow

This study was designed to quantitatively determined blood flow to the extraocular muscles (EOM) of animals showing a wide range of ocular motility Blood-flow values (ml/minute/gm) for EOM in primates (0.25 +/- 0.03), dogs (0.33 +/- 0.06), sheep (0.12 +/- 0.01), and geese (0.12 +/- 0.04) were determ...

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Bibliographic Details
Published inThe Journal of experimental zoology Vol. 215; no. 1; p. 87
Main Authors Wilcox, Jr, L M, Keough, E M, Connolly, R J, Hotte, C E
Format Journal Article
LanguageEnglish
Published United States 01.01.1981
Subjects
Animals
Cercopithecidae - physiology
Dogs - physiology
Geese - physiology
Male
Muscles - blood supply
Oculomotor Muscles - blood supply
Regional Blood Flow
Sheep - physiology
Species Specificity
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Summary:This study was designed to quantitatively determined blood flow to the extraocular muscles (EOM) of animals showing a wide range of ocular motility Blood-flow values (ml/minute/gm) for EOM in primates (0.25 +/- 0.03), dogs (0.33 +/- 0.06), sheep (0.12 +/- 0.01), and geese (0.12 +/- 0.04) were determined using the Reference Sample Method with 15 +/- 3 micrometer 103Ru microspheres and complete cardiovascular monitoring. Mammalian EOM blood flow was significantly higher than that determined for other skeletal muscle; however, EOM blood-flow values for sheep were significantly lower than those for primates and dogs. No significant blood-flow differences were found between avian EOM and other skeletal muscle, reflecting the unique avian ocular anatomy. These data indicate that high blood flow is not a general property of EOM and suggest a relationship between functional ocular motility and blood flow.
ISSN:0022-104X
DOI:10.1002/jez.1402150110