palpebral muscle

  • 111ectropion — ec·tro·pi·on ek trō pē .än, pē ən n an abnormal turning out of a part (as an eyelid) * * * n. turning out of the eyelid, away from the eyeball. The commonest type is senile ectropion, in which the lower eyelid droops because of laxity of the… …

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  • 112senile ectropion — eversion of the lower eyelid associated with relaxation of the fibers of the palpebral portion of the orbicularis oculi muscle as a concomitant of age, or occurring as a result of atrophic changes in the skin …

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  • 113musculus tarsalis inferior — [TA] inferior tarsal muscle: origin, m. rectus inferior bulbi; insertion, tarsal plate of lower eyelid; innervation, sympathetic; action, widens palpebral fissure …

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  • 114tuberculum orbitale — [TA] orbital tubercle: a small eminence on the internal aspect of the orbital surface of the zygomatic bone, inferior to the frontozygomatic suture; it provides attachment for the lateral palpebral ligament, suspensory ligament of the eye, and… …

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