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tertiary action |
Also found in: Dictionary/thesaurus, Legal, Financial, Encyclopedia, Hutchinson | 0.01 sec. |
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action, tertiary Term referring to the least effect of an extrocular muscle. The tertiary action of the inferior rectus is extorsion; of the superior rectus, intorsion; of the inferior and superior oblique, abduction. The medial and lateral recti muscles are regarded as having only a primary action, at least in the primary position. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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