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Hand Muscles PTA Quiz

Select the Answer that corresponds to the displayed Question.
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1. Adductor Policus




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2. Abductor digiti minimi




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3. Palmar Interosseous




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4. Dorsal Interosseous Muscles




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5. Flexor digiti minimi




Select the Question that corresponds to the displayed Answer.
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6. ORIGIN: flexor retinaculum, trapezium. INSERTION:radial border 1st metacarpal. NERVE:median thenar branch.ACTION:draws 1st metacarpal laterally to opose the thumb toward center of palm and rotates it medially.




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7. ORIGIN:tendons of flexor digitorum profundus.INSERTION:extension expansion hood of medial 4 digits.NERVE:deep branch ulnar(medial 2 L's) median (lateral 2 L's).ACTION:flexes fingers and extends interphalgeal joints.




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8. ORIGIN:flexor retinaculum,hamate.INSERTION:ulnar medial border(5th metacarpal).ACTION:draws 5th metacarpal anteriorly and rotates it,bringing little finger into oposition with the thumb.




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9. ORIGIN:flexor retinaculum trapezium. INSERTION: thumb. NERVE: median thenar branch. ACTION:Flexes the thumb at the first metacarpophalangeal joint.




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10. Origin:flexor retinaculum trapezeum. INSERTION:lateral proximal phalanx of thumb.NERVE: median thenar branch.ACTION:abducts thumb and helps opose it.




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11. ORIGIN: anterior retinaculum and palmer aponeurosis.INSERTION:skin ulnar border of hand.NERVE:superficial ulnar. ACTION:pulls on skin over thenar eminence, deepening cup of the palm and improving grip.





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