Medical Definition of Smaller psoas muscle

1. An inconstant muscle, absent in about 40%; origin, bodies of twelfth thoracic and first lumbar vertebrae and disk between them; insertion, iliopubic eminence via iliopectineal arch (iliac fascia); action, assists in flexion of lumbar spine; nerve supply, lumbar plexus. Synonym: musculus psoas minor, smaller psoas muscle. (05 Mar 2000)



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Lexicographical Neighbors of Smaller Psoas Muscle

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small white aster
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smalled
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smaller muscle of helix
smaller pectoral muscle
smaller posterior rectus muscle of head
smaller psoas muscle (current term)
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smallest cardiac veins
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smallest room in the house
smallest scalene muscle
smallest splanchnic nerve
smalleye hammerhead
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