Innervation and Action of Hand PTA

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Author:
amills1
ID:
284921
Filename:
Innervation and Action of Hand PTA
Updated:
2014-10-05 17:39:14
Tags:
Innervation Action Hand PTA
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Description:
Innervation and Action of Hand PTA
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  1. FDS
    • Innervation
    • -Median
    • -C7,8, T1
    • Action: Flexes MCP and PIP joints
  2. FDP
    • Innervation
    • -Median and ulnar
    • -C8, T1
    • Action: Flexes all 3 finger joints
  3. FPL
    • Innervation
    • -Median
    • -C8, T1
    • Action: Flexes all 3 joints of the thumb; CMC, MCP, IP
  4. Abductor Pollicis Longus
    • Innervation
    • -Radial
    • -C6,7
    • Action: Abducts thumb CMC
  5. Extensor Pollicis Brevis
    • Innervation
    • -Radial
    • -C6,7
    • Action: Extends thumb CMC and MCP
  6. Extensor Pollicis Longus
    • Innervation
    • -Radial
    • -C6,7,8
    • Action: Extends all 3 thumb joints CMC,MCP,IP
  7. Extensor Digitorum
    • Innervation
    • -Radial
    • -C6,7,8
    • Action
    • -Extends all 3 joints of fingers MCP,PIP,DIP
  8. Extensor Indicis
    • Innervation
    • -Radial
    • -C6,7,8
    • Action
    • -Extends all 3 joints of 2nd finger MCP,PIP,DIP
  9. Extensor Digiti Minimi
    • Innervation
    • -Radial
    • -C6,7,8
    • Action: Extends all 3 joints of 5th finger MCP,PIP,DIP
  10. Flexor Pollicis Brevis
    • Innervation
    • -Median
    • -C6,7
    • Action: Flexes CMC and MCP joints of thumb
  11. Abductor Pollicis Brevis
    • Innervation
    • -Median
    • -C6,7
    • Action: Abducts the thumb CMC joint
  12. Opponens Pollicis
    • Innervation
    • -Median
    • -C6,7
    • Action: Opposes the thumb CMC joint
  13. Adductor Pollicis
    • Innervation
    • -Ulnar
    • -C8,T1
    • Action: Adducts the thumb CMC joint
  14. Dorsal Interossei
    • Innervation
    • -Ulnar
    • -C8,T1
    • Action
    • -Abducts fingers at MCP joint
  15. Palmar Interossei
    • Innervation
    • -Ulnar
    • -C8,T1
    • Action: Adducts fingers at MCP joint
  16. Lumbrical
    • Innervation
    • -1st and 2nd median nerve
    • -3rd and 4th ulnar nerve
    • -C6,7,8
    • Action
    • -Flex MCP joint
    • -Extend PIP and DIP joints
  17. Abductor Digiti Minimi
    • Innervation
    • -Ulnar
    • -C8,T1
    • Action
    • -Abds 5th finger at MCP joint
  18. Opponens Digiti Minimi
    • Innervation
    • -Ulnar
    • -C8,T1
    • Action: Opposes the 5th finger at CMC

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