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Comparative extraocular muscle blood flow.

L M Wilcox·E M Keough·R J Connolly·C E Hotte
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Abstract

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.

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AnimalsCercopithecidaeDogsGeeseMaleMusclesOculomotor MusclesRegional Blood FlowSheepSpecies SpecificityComparative StudyJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.

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L M Wilcox, E M Keough, R J Connolly, C E Hotte. 1981. Comparative extraocular muscle blood flow.. https://doi.org/10.1002/jez.1402150110

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