ATH301

Card Set Information

Author:
itzlinds
ID:
239633
Filename:
ATH301
Updated:
2013-11-06 20:42:43
Tags:
intrinsic foot toe muscles posterior anterior leg
Folders:

Description:
intrinsic foot & toe muscles; posterior & anterior leg muscles
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  1. Muscle: abductor digiti minimi
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: flexion of teh 5th MTP joint; abduction of the 5th MTP joint
    • origin: lateral portion of the calcaneal tuberosity; proximal lateral portioin of the calcaneus
    • insertion: lateral portion of the 5th proximal phalanx
    • innervation: lateral plantar
    • nerve root: S1, S2
  2. Muscle: abductor hallcuis
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: ABD of the 1st MTP joint; assists in flexion of the 1st MTP joint; assists in forefoot ADD
    • origin: medial calcaneal tuberosity; flexor retinaculum; plantar aponeurosis
    • insertion: plantar surface of the medial base of the 1st toe's proximal phalanx
    • innervation: medial plantar
    • nerve root: L4, L5, S1
  3. Muscle: adductor hallucis
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: ADD of teh 1st MTP joint; assists in flexion of teh 1st MTP joint
    • origin: oblique head: bases of 2nd throught 4th metatarsals; tendon sheath of peroneus longus transverse head: plantar surface of 3, 4, 5th metatarsal heads
    • insertion: lateral surface of teh base of the 1st toe's proximal phalanx
    • innervation: lateral plantar
    • nerve root: S1, S2
  4. Muscle: Flexor Digiti Minimi Brevis
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: Flexion of the 5th MTP joint
    • origin: Plantar surface of the cuboid; base of the 5th metatarsal
    • insertion: plantar aspect of the base of the 5th proximal phalanx
    • innervation: lateral plantar
    • nerve root: S1, S2
  5. Muscle: Flexor Digitorum Brevis
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: Flexion of teh 2nd through 5th PIP joint; assists in flexion of teh 2nd - 5th MTP joint
    • origin: medial calcaneal tuberosity; plantar fascia
    • insertion: via 4 tendons; each having 2 splits, into the medial and lateral sides of the proximal 2nd - 5th phalanges
    • innervation: medial plantar
    • nerve root: L4, L5, S1
  6. Muscle: Flexor Hallucis Brevis
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: Flexion of 1st MTP joint
    • origin: medial side of the cuboid's plantar surface; slip from the tibialis posterior tendon
    • insertion: via 2 tendons into the medial and lateral sides of the proximal phalanx of the 1st toe
    • innervation: medial plantar
    • nerve root: L4, L5, S1
  7. Muscle: interossei, dorsal
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: ABD of teh 3rd and 4th digits; assists in flexion of the MTP joints; assists in extension of the 3,4,5th IP joints
    • origin: via 2 heads to the contiguous sides of teh metatarsals
    • insertion: Baes of proximal phalanges and associated dorsal extensor mechanism of medial 2nd toe and the lateral 2,3,4th toes
    • innervation: lateral plantar
    • nerve root: S1, S2
  8. Muscle: interossei, plantar
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: ADD of the 3,4,5th digits; assists in MTP joint flexion; assists in extension of the 3,4,5th IP joint
    • origin: base and medial aspects of the 3,4,5th metatarsals
    • insertion: medial portion of the bases of the 3,4,5th proximal phalanges
    • innervation: lateral plantar
    • nerve root: S1, S2
  9. Muscle: lumbricals
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: flexion of the 2nd- 5th MTP joint; assists in extension of the 2-5th IP joints
    • origin: tendons of the flexor digitorum longus
    • insertion: posterior surfaces of teh 2-5th toes via the flexor digitorum longgus tendons
    • innervation: 1st: medial plantar 2nd-5th lateral plantar
    • nerve root: 1st: L4, L5, S1 2nd - 5th: S1, S2
  10. Muscle: Quadratus Plantae
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: modifies the flexor digitorum longus' angle of pull; assists in flexion of the 2-5th MTP joints
    • origin: Medial head: medial calcaneus; Lateral head: lateral calcaneus
    • insertion: dorsal and plantar surfaces of the flexor digitorum longus
    • innervation: lateral plantar
    • nerve root: S1, S2
  11. muscle: Flexor Digitorum Longus
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: Flexion of the 2nd - %th PIP and DIP joints; Flexion of 2nd-5th MTP joints; assists in ankle plantarflexion; assists in foot supination
    • origin: posterior medial portion of the distal 2/3 of the tibia; from fasica arising from the tibials posterior
    • insertion: plantar base of distal phalanges of the 2-5th toes
    • innervation: tibial
    • nerve root: L5, S1
  12. muscle: Flexor Hallucis Longus
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: flexion of the 1st IP joint; assists in flexion of the 1st MTP joint; assists in foot supination, assists in ankle plantarflexion
    • origin: posterior distal 2/3 of the fibula; associated interosseous membrane and muscle fascia
    • insertion: plantar surface of the proximal phalanx of the 1st toe
    • innervation: tibial
    • nerve root: L4, L5, S1
  13. muscle: Gastrocnemius
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: ankle plantarflexion; assists in knee flexion
    • origin: medial head: posterior surface of the medial femoral condyle; adjacent portion of the femur and knee capsule// lateral head: posterior surface of the lateral femoral condyle; adjacent portion of the femur and the knee capsule
    • insertion: to the calcaneus via the Achilles tendon
    • innervation: tibial
    • nerve root: S1,S2
  14. muscle: Peroneus Brevis
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: pronation of the foot; assists in ankle plantarflexion
    • origin: distal 2/3 of the lateral fibula
    • insertion: styloid process at the base of the 5th metatarsal
    • innervation: superficial peroneal
    • nerve root: L4,L5, S1
  15. muscle: Peroneus Longus
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: pronation of the foot; assists in ankle plantarflexion
    • origin: lateral tibial condyle; fibular head; upper 2/3 of the lateral fibula
    • insertion: lateral aspect of the base of the 1st metatarsal; lateral and dorsal aspect of the 1st cuneiform
    • innervation: tibial
    • nerve root: L4,L5,S1
  16. muscle:plantaris
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: ankle plantarflexion; assists in knee flexion
    • origin: distal portion of the supracondylar line of the lateral femoral condyle; adjacent portion of the femoral popliteal surface; oblique popliteal ligament
    • insertion: to the calcaneus via the Achilles tendon
    • innervation: tibial
    • nerve root: L4,L5,S1
  17. muscle: soleus
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: ankle plantarflexion
    • origin: posterior fibular head; upper 1/3 of the fibula's posterior surface; soleal line located on the posterior tibial shaft; middle 1/3 of the medial tibial border
    • insertion: to the calcaneus via the Achilles tendon
    • innervation: tibial
    • nerve root: S1,S2
  18. muscle: tibialis posterior
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: supination of the foot; assists in ankle plantarflexion
    • origin: length of the interosseous membrane;posterior, lateral tibia, upper 2/3 of the medial fibula
    • insertion: navicular tuberosity; via fibrous slips to the sustentaculum tali; cuneiforms, cuboid, and bases of the 2,3,4 metatarsals
    • innervation: tibial
    • nerve root: L4,L5
  19. muscle: Extensor Digitorum Brevis
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: Extension of the 1-4 MTP joints; assists in extension of the 2,3,4, PIP and DIP joints
    • origin: distal portion of the superior and lateral portion of the calcaneus; lateral talocalcaneal ligament; lateral portion of the inferior extensor retinaculum
    • insertion: to the dorsal surface of the base of the 1st phalanx; proximal phalanges of the 2,3,4 toes and the distal phalanges via an attachment to the extensor digitorum longus tendon
    • innervation: deep peroneal
    • nerve root: L5,S1
  20. muscle: extensor digitorum longus
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: extension of the 2nd-5th MTP joints; assists in extending 2-5 PIP and DIP joint; assists in foot pronation; assists in ankle dorsiflexion
    • origin: lateral tibial condyle; proximal 3/4 of anterior fibula; proximal portion of the interosseous membrane
    • insertion: via 4 tendons to the distal phalanges of the 2-5 toes
    • innervation: deep peroneal
    • nerve root: L4,L5,S1
  21. muscle: extensor hallucis longus
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action:  extension of the 1st MTP joint; extension of the 1st IP joint; assists in ankle dorsiflexion
    • origin: middle 2/3 of the anterior surface of the fibula; adjacent portion of the interosseous membrane
    • insertion: base of the distal phalanx of 1st toe
    • innervation: deep peroneal
    • nerve root: L4,L5,S1
  22. muscle: peroneus tertius
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: pronation of the foot; dorsiflexion of the ankle
    • origin: distal 1/3 of the anterior surface of the fibula; adjacent portion of the interosseous membrane
    • insertion: dorsal portion of the base of the 5th metatarsal
    • innervation: deep peroneal
    • nerve root: L4,L5,S1
  23. muscle: tibialis anterior
    action:
    origin:
    insertion:
    innervation:
    nerve root:
    • action: dorsiflexion of the ankle; supination of the foot
    • origin: lateral tibial condyle; upper 1/2 of the tibia's lateral surface; adjacent portion of the interosseous membrane
    • insertion: medial and plantar surface of the 1st cuneiform; medial and plantar surfaces of the 1st metatarsal
    • innervation: deep peroneal
    • nerve root: L4,L5, S1

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