inferior rectus

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Related to inferior rectus: lateral rectus, medial rectus
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  • noun

Synonyms for inferior rectus

the ocular muscle whose contraction turns the eyeball down and medially

References in periodicals archive ?
inferior rectus - the branch to the inferior oblique also contains parasympathetic preganglionic fibres from the Edinge-Westphal subnucleus
Downward saccades are effected by projections from the riMLF onto motoneurons in the inferior rectus and trochlear nuclei.
The inferior rectus muscle is the most commonly affected, followed by the medial, superior then lateral rectus with ocular movements usually worst on upgaze.
The inferior rectus muscle is most commonly involved, leading to vertical diplopia on upgaze.
While the levator palpebrae superioris and superior rectus muscles were innervated by the upper branch, the medial rectus, the inferior rectus, and the inferior oblique muscles were innervated by the lower branch (2-4).
Extensive scarring was encountered, and the inferior rectus muscle was trapped within the orbital floor defect.
For the lower eyelid, the muscle/tendon complex inserts via a capsulopalpebral ligament, which connects the lower lid to the inferior rectus muscle; hence on down-gaze, the eyelid moves down too.
Ampullofugal stimulation of the cupula of the posterior semicircular canal leads to vertigo and to an up-beating and torsional nystagmus secondary to the contraction of the ipsilateral right superior oblique muscle ipsilateral to the posterior semicircular canal and of the contralateral inferior rectus muscle.
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