THE LEG (UOP)

  1. The crural fascia is an extension of what?
    the fascia late of the thigh
  2. What is the deep fascia of the leg called?
    Crural fascia
  3. What is the function of the interosseous membrane between the fibula and the tibia?
    It serves as an attachment point for muscles
  4. What number is the big toe considered to be anatomically?
    #1
  5. Name the bones in the foot
    • - Calcaneus
    • - Talus
    • - Navicular
    • - Cuboid
    • - cuneiforms 1-3 (medial, intermediate, lateral) 
    • - Metatarsals (1-5)
    • Phalanges (proximal, middle, distal)
  6. How many phalanges does the 2nd digit have of the foot?
    3 phalanges (proximal, middle, distal)
  7. How many phalanges does the first digit have in the foot?
    2 phalanges (proximal, distal)
  8. What are the five retinaculum of the foot?
    • Superior Extensor Retinaculum
    • Inferior Extensor Retinaculum
    • Superior Fibular Retinaculum
    • Inferior Fibular Retinaculum
    • Flexor Retinaculum
  9. What action do the retinaculums of the lateral portion of the foot perform?
    The Superior and Inferior Fibular Retinaculum help the foot plantar flex
  10. What action does the retinaculum of the medial side of the foot perform?
    The Flexor retinaculum helps with plantar flexion.
  11. What action does the Superior and Inferior Extensor Retinaculum perform?
    They doors flex the foot
  12. where does the superior extensor retinaculum attach?
    above both malleoli of the fibula and tibia
  13. What are the attachments of the superior fibular retinaculum?
    It attaches from the lateral malleolus to the medial malleolus and to the plantar aponeurosis
  14. What are the attachments for the Inferior fibular retinaculum?
    From the lateral/ Inferior calaneous to the fibular trochlea and then to the lateral/superior calcareous where it becomes continuous with the Inferior Extensor Retinaculum
  15. What are the attachments of the Flexor Retinaculum?
    It attaches from the medial malleolus to the medial/inferior/posterior calcaneous
  16. What is the general function of the retinaculums?
    to redirect the force to the foot
  17. What do extrinsic muscles of the foot do?
    The muscle belly are found elsewhere other than the foot but they act on the foot
  18. What do intrinsic muscles of the foot do?
    The intrinsic muscles do fine movements of the foot because these small muscles generate small force.
  19. How does an anatomical pully work?
    It changes the angle of the pull
  20. What are the three compartments of the leg?
    Anterior, posterior, and lateral
  21. What is the common action of the anterior compartment of the leg?
    dorsiflexion
  22. What is the common nerve supply of the anterior portion of the leg?
    deep fibular nerve
  23. What is the common blood supply of the anterior compartment?
    anterior tibial artery
  24. What forms the anterior portion of the leg compartment?
    • tibia
    • fibula
    • interosseous membrane
    • anterior inter muscular septa
    • crural fascia
  25. Name Origin, Insertion, Nerve innervation, and Action of Tibialis Anterior
    • O: condyle and surface of the lateral tibia
    • I: 1st cuneiform and base of the 1st metatarsal
    • N: deep fibular nerve (L4,L5)
    • A: dorsiflexion, inversion
  26. What is foot drop and and what causes it?
    Foot drop is when the foot drags and then drops due to nerve damage in the L4 spinal level
  27. What is the action of anterior tibias muscle?
    dorsiflexion and inversion of the foot
  28. What nerve innervates anterior tibialis?
    deep femoral nerve (L4, L5)
  29. Where does tibialis anterior originate and insert?
    • O: surface and condyle of tibia
    • I: base of the 1st metatarsal and the 1st cuneiform
  30. Name the origin, insertion, nerve innervation, and blood supply of Extenser Hallucis Longus
    • O: Middle fibula, interosseous membrane
    • I: base of distal phalanx of the grater toe (#1)
    • N: deep fibular nerve (L5, S1)
    • A: dorsiflexion, extension of the great toe (both MP joint and IP)
  31. What innervates the Extensor Hallucis Longus?
    • deep fibular nerve
    • spinal level (L5, S1)
  32. What artery supplies extensor hallucis longus?
    anterior tibial artery
  33. What is the origin and insertion of hallucis longus?
    • O: Middle fibula, interosseous membrane
    • I: base of 1st distal phalanx (great toe)
  34. Name the origin, insertion, nerve supply, and blood supply of extensor digitorum longus
    • O: lateral condyle of tibia, interosseous membrane, upper fibula
    • I: base of middle and distal phalanx (splits into 4 tendons and inserts into extensor expansion)
    • N: deep fibular (L5,S1)
    • A: dorsiflexion, extension of toes 2-5 (MP, PIP, & DIP joints)
  35. What nerve supplies the Extensor Digitorum Longus?
    • deep fibular
    • Spinal level (L5, S1)
  36. What artery supplies Extensor Digitorum Longus?
    anterior tibial artery
  37. Name the origin and insertion of fibulas tertius
    • O: anterior/ inferior fibula, interosseous membrane
    • I: near base of 5th metatarsal
  38. What is the nerve supply for Fibularis Tertius?
    deep fibular nerve (L5, S1)
  39. What compartment is the Fibularis tertius in and what action does it do?
    • anterior leg compartment
    • dorsiflexion, eversion
  40. What nerves does the deep fibular nerve split into in the leg?
    after it travels behind the head of the fibula it splits into the superficial and deep fibular nerves
  41. Tell me the path of the sciatic nerve
    • - great sciatic foramen
    • - splits into common fibular and tibial nerve
    • - common fibular splits to deep & superficial fibular
    • - deep fibular splits into medial & lateral branches to supply dorsal foot
  42. What artery does the deep fibular nerve travel with?
    Anterior tibial artery along the interosseous membrane in the anterior compartment
  43. Once the deep fibular nerve travels deep to the extensor retinaculum what happens to the nerve?
    it splits to become medial and lateral beaches that supply the dorsal foot
  44. Where does the popliteal artery split?
    • -just below the popliteus muscle
    • - it becomes anterior/ posterior tibial arteries
  45. Where does the anterior tibial artery pass once it split from the popliteal artery?
    • the unnamed opening that is bordered by the tibia, fibula, and the interosseous membrane
    • (Mansoor's hiatus/hole)
  46. What arteries supply the ankle?
    • The anterior lateral and medial arteries 
    • - they branch from the deep fibular nerve
  47. What arteries does the anterior tibial artery give off?
    • - anterior/ posterior tibial recurrent arteries
    • - anterior medial/lateral malleolar arteries
    • - becomes the dorsals pedis once it crosses the ankle
  48. What is the anterior tibial artery called once it crosses the ankle?
    Dorsalis pedis artery
  49. What branches off the dorsals pedis artery?
    • - medial/ lateral tarsal arteries
    • - arcuate artery
    • - deep plantar artery
  50. The arcuate artery gives off the ___ and ultimately the ____ arteries to vascularize the distal dorsal foot.
    • metatarsal 
    • phalangeal
  51. What artery does the deep plantar artery combine with deep on the plantar surface of the foot?
    deep plantar arterial arch
  52. What arteries supplies the distal dorsal foot?
    phalangeal arteries that branch off the arcuate artery
  53. What arteries vascularize the tarsal bones?
    Medial/ Lateral Tarsal arteries
  54. What are the general action, nerve, and blood supply of the lateral compartment of the leg?
    • - Action: Plantarflexion, eversion
    • - Nerve: Superficial fibular nerve
    • - Blood supply: perforating branches of fibular artery (which comes off the posterior tibial artery).
  55. Which structures forms the lateral compartment of the leg (not including muscles).
    • Fibula
    • Anterior/ posterior inter muscular septa
    • crural fascia
  56. Name the origin, Insertion, action, and nerve supply of fibularis longs muscle.
    • O: head and lateral surface of the fibula
    • I: base of the 1st metatarsal, cuneiform #1
    • A: Plantarflexion and eversion
    • N: Superficial fibular (L5, S1)
  57. What is the blood supply of fibulas longus?
    perforating branches of the femoral artery
  58. Name the origin, Insertion, action, and nerve supply of fibularis brevis muscle.
    • O: lower lateral surface of tibia
    • I: Base of 5th metatarsal (tubercle)
    • A: plantar flexion, eversion
    • N: superficial fibular (L5, S1)
  59. What nerve travel deep to fibulas longus before becoming superficial?
    superficial fibular nerve
  60. The superficial fibular nerve splits into what two nerves?
    The medial and intermediate dorsal cutaneous nerves
  61. What do the medial and intermediate dorsal cutaneous nerves innervate?
    • the anterior and lateral lower leg
    • skin on dorsal of foot
    • toes 1-4 (not the web space of the 1st)
  62. What is the blood supply of the lateral compartment of the leg?
    perforating branches of the fibular artery
  63. What are the common action, nerve supply, and blood supply of the posterior compartment of the leg?
    • Action: plantar flexion
    • Nerve supply: tibial nerve
    • blood supply: posterior tibial artery, fibular artery
  64. What muscles are a part of the lateral compartment of the leg?
    Fibularis longs and fibularis brevis
  65. What muscles make up the posterior superficial compartment of the leg
    • Gastrocnemius
    • Soleus
    • Plantaris
  66. What muscles make up the posterior deep compartment of the leg?
    • Popliteus
    • Tibialis Posterior
    • Flexor Digitorum Longus
    • Flexor Hallucis Longus
  67. What are the Origin, Insertion, action, and nerve of Gastrocnemius ?
    • O: Medial and lateral condyles of the femur
    • I: Calcaneus via the achilles tendon (calcaneal tendon, tendocalcaneal)
    • A: plantar flexion is primary, knee flexion
    • N: tibial nerve (S2)
  68. What is the primary action of gastrocnemius?
    plantar flexion
  69. Is gastrocnemius a one or two joint muscle?
    two joint
  70. What are the Origin and Insertion for soleus?
    • O: Head and posterior surface of fibula and the soleal line and medial border of tibia
    • I: Calcaneous via Achilles tendon
  71. What is the blood supply and nerve supply of the soleus muscle?
    • Nerve: Tibial nerve (S2)
    • Blood supply: posterior tibial artery and fibular artery
  72. Name the origin, Insertion, action, and nerve of Popliteus.
    • O: Lateral surface lateral condyle of femur, lateral meniscus
    • I: Posterior medial surface of tibia
    • A: plantar flexion, helps unlock the knee out of extension, rotates femur laterally on fixed tibia
    • N: tibial nerve (L4,L5)
  73. What does the pneumonic Tom Dick And Harry stand for?
    • Tibialis Posterior
    • Flexor Digitorum Longus
    • Posterior tibial Artery
    • Tibial Nerve
    • Flexor Hallucis Longus
Author
cheerios258
ID
342359
Card Set
THE LEG (UOP)
Description
Question about the function or muscles, tendons, and articulations. Muscles of lower leg compartments, Origin/ insertion, blood supply and nerve supply.
Updated