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16 Cards in this Set
- Front
- Back
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What are the primary and secondary actions of the superior rectus?
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1. elevate
2. adduct & intorsion |
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What are the primary and secondary actions of the inferior rectus?
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1. depress
2. adduct & extorsion |
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What is the primary action of the medial rectus?
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adduction
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What is the primary action of the lateral rectus?
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abduction
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What are the primary and secondary actions of the superior oblique?
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1. intorsion
2. depression & abduction |
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What are the primary and secondary actions of the inferior oblique?
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1. extorsion
2. elevation & abduction |
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All superior muscles do what?
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intorsion
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All oblique muscles do what?
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abduct
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All the EOMs originate from the common tendinous ring except for which two?
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superior and inferior obliques
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What EOM originates from the lesser wing of sphenoid?
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superior oblique
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Which EOM originates from the maxillary bone?
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inferior oblique
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Which EOM originates from the greater wing of sphenoid AND the CTR?
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lateral rectus
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Which EOM is the thickest?
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medial rectus
b/c of convergence |
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Which EOM is the longest and thinnest?
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superior oblique
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The EOMs are primarily supplied by which artery?
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muscular artery
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The muscular artery is broken down into two branches (superior & inferior), which EOMs does each branch innervate?
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superior (lateral) : SR, SO, LR
inferior (medial): IR, IO, MR |
