3.2.16. Dark muscle
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Preserve of layers of dark muscle in regions carry on sustained activity.
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Salmonids and tunas have layer of dark muscle under the shell.
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In perch, the main propulsion is through pectoral fin. The dark muscle relates to the pectoral rather than caudal fin.
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Sea horses and pipe fish propel them primarily with pectoral fin – dark muscle associated with it.
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Extensive capillary bules associated with dark muscle.
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Blood supply to dark muscle becerues.
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More blood supply to white muscle becerues less.
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Metabolism of dark muscle is as aerobic – metabolism of white muscle is aerobic.
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Last modified: Wednesday, 28 March 2012, 5:24 AM