inferior oblique (IO)

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Introduction

Extraocular muscle in the orbit.

Origin

Insertion

  • sclera between the superior & lateral recti

Action

Innervation

Physical examination

Test: ask patient to look upward & inward

More general terms

References

  1. Grant's Atlas of Anatomy, 10th edition, AMR Agur & MJ Lee (eds), Lippincott Williams & Wilkins, Philadelphia, 1999
  2. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999