Notecard 6

Card Set Information

Author:
hw.hair
ID:
284978
Filename:
Notecard 6
Updated:
2014-10-06 00:20:00
Tags:
Muscles
Folders:
Quiz
Description:
Muscles
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user hw.hair on FreezingBlue Flashcards. What would you like to do?


  1. Abductor pollicis brevis: movement away from median plane- thumb- wrist

    Action: abducts thumb
    • O: flexor retinaculum and nearby carpals 
    • I: lateral base of thumb's proximal phalanx
  2. Flexor pollicis brevis: decrease angle between two bones-thumb- short 

    Action: flexes thumb
    • O: flexor retinaculum and trapezium
    • I: lateral side of base of proximal phalanx of thumb
  3. Adductor pollicis: movement towards median plane- thumb

    Action: adducts and helps to oppose thumb
    • O: capitate bone and bases of metacarpals 2-4; front of metacarpal 3
    • I: medial side of base of proximal phalanx of thumb
  4. Flexor digiti minimi brevis: decrease angle between two bones- little finger- short 

    Action: flexes little finger at metacarpophalangeal joint
    • O: hamate bone and flexor retinaculum
    • I: medial side of proximal phalanx of little finger
  5. Abductor digiti minimi: movement away from median plane- little finger

    Action: abducts little finger at metacarpophalngeal joints
    • O: pisiform bone
    • I: medial side of proximal phalanx of little finger
  6. Opponens digiti minimi: opposistion- little finger

    Action: helps in opposition: brings metacarpal 5 towards thumb
    • O: hamate bone and flexor retinaculum
    • I: most length of medial side of metacarpal 5
  7. Lumbricalis: earthworm

    Action: flex fingers at metacarpophalangeal joints but extends fingers at interphalangeal joints
    • O: lateral side of each tendon of flexor digitorum profundus in palm 
    • I: lateral edge of extensor expansion on first phalanx of fingers 2-5
  8. Palmar interossei: palm- between bones 

    Action: adductors of fingers; pull fingers in toward third digit; act with lumbricalis to extend fingers and interphalangeal joints and flex the at metacarpophalangeal joints
    • O: the side of each metacarpal that faces the midaxis of the hand (except finger 3)
    • I: extensor expansion on first phalanx of each finger (except 3) on side facing midaxis of heand
  9. Dorsal Interossei: back- between bones

    Action: abduct (diverge) fingers; extend fingers at interphalangeal joints and flex them at metacarpophalangeal joints
    • O: sides of metacarpals
    • I: extensor expansion over first phalanx of fingers 2-4 on side opposite midaxis of hand (except finger 3) but on both side of finger 3
  10. Extensor digitorum brevis: increase angle at joints- toe- short

    Action: helps extend toes at metatarsophalangeal joints
    • O: anterior part of calcaneus bone; extensor retinaculum 
    • I: base of proximal phalanx of great toe; extensor expansions on toes 2-5
  11. Flexor digitorum brevis: decrease angle at joints- toe- short

    Action: helps flex toes
    • O: tuber calcanei
    • I: middle phalanx of toes 2-4
  12. Abductor hallucis: move away from midline- great toe

    Action: abducts great toe
    • O: tuber calcanei and flexor retinaculum
    • I: proximal phalanx of the medial side of great toe in the tendon of flexor hallucis brevis
  13. Abductor digiti minimi: moves away from midline- toe- small

    Action: abducts and flexes little toe
    • O: tuber calcanei
    • I: lateral side of base of little toe's proximal phalanx
  14. Lumbricals: 

    Action: flex toes at metatarsophalangeal joints
    • O: from each tendon of flexor digitorum longus
    • I: extensor expansion on proximal phalanx of toes 2-5 on the medial side
  15. Flexor hallucis brevis: decrease angle at joints- great toe- short

    Action: flexes metatarsophalangeal joint of big toe
    • O: lateral cuneiform and cuboid bones
    • I: via two tendons onto base of the proximal phalanx of great toe
  16. Adductor hallucis: move toward midline- great toe

    Action: helps maintain the transverse arch of foot; weak adductor of big toe
    • O: from bases of metatarsals 2-4 and from fibularis longus tendon sheath (oblique head); from ligament across metatarsophalangeal joints (transverse head)
    • I: base of proximal phalanx of great toe
  17. Flexor digiti minimi brevis: decreases angle at joints- toe- small- short

    Action: flexes little toe at metatarsophalangeal joint
    • O: base of metatarsal 5 and tendon sheath of fibularis longus
    • I: base of proximal phalanx of toe 5
  18. Flexor accessorius:

    Action: straightens out the oblique pull of flexor digitorum longus
    • O: medial and lateral sides of calcaneus
    • I: tendon  of flexor digitorum longus in midsole
  19. Plantar interossei: foot- between bones 

    Action: adductors of toes; pull toes towards digit 2
    • O: the side of each metatarsal that faces the midaxis of the foot (digit 2)
    • I: extensor expansion over first phalanx of toes 3-5
  20. Dorsal interossei: dorsal- between bones 

    Action: abduct toes
    • O: sides of metatarsals
    • I: extensor expansion over first phalanx of toes 3-5, on side opposite midaxis of foot (toe 2), but on both sides of toe 2

What would you like to do?

Home > Flashcards > Print Preview