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Flashcards

n part 2

Shylla T English 51 cards

Cards in this deck (51)

  1. 1coursePierces the deep fascia in the lower one-third of the leg and innervates the skin on the lower anterolateral aspect of the leg.
    Proximal to the malleoli it divides into a medial dorsal cutaneous nerve and an intermediate dorsal cutaneous nerve.
  2. 2Medial dorsal cutaneous nerve branches fromthe superficial peroneal (fibular) nerve in the lower leg region.
  3. 3courseOn the dorsum of the foot it divides into a dorsal proper digital branch and a dorsal common digital branch.
  4. 4The dorsal proper digital branch innervatesthe skin on the dorsomedial aspect of the hallux.
    Anatomical note: The dorsal proper digital branch communicates with the medial terminal branch of the deep peroneal nerve and the saphenous nerve.
  5. 5The dorsal common digital branchdivides into two dorsal proper digital branches for the skin on the adjacent sides of the second and third toes.
  6. 6innervateshe skin on the dorsomedial side of the foot.
  7. 7Intermediate dorsal cutaneous nerve (Lemont’s nerve) branches fromthe superficial peroneal (fibular) nerve in the lower leg region.
  8. 8courseOn the dorsum of the foot it divides into a medial dorsal common digital branch and a lateral dorsal common digital branch.
  9. 9The medial dorsal common digital branch divides intotwo dorsal proper digital branches for the skin on the adjacent sides of the third and fourth toes.
  10. 10The lateral dorsal common digital branch divides intotwo dorsal proper digital branches for the skin on the adjacent sides of the fourth and fifth toes.
  11. 11Anatomical note: The lateral dorsal common digital branch communicates with the lateral dorsal cutaneous nerve..
  12. 12innervationIt innervates the skin on the dorsointermediate side of the foot.
  13. 13The intermediate dorsal cutaneous nerve may also branch from thesural nerve or the lateral dorsal cutaneous nerve
  14. 14Lateral dorsal cutaneous nerve branches fromContinuation of the sural nerve as it courses below the lateral malleolus.
  15. 15courseIt courses along the dorsolateral side of the foot innervating the skin in this region.
    It terminates as a dorsal proper digital nerve to the dorsolateral side of the fifth toe.
  16. 16Anatomical note: The lateral dorsal cutaneous nerve communicates with the lateral dorsal common digital branch of the intermediate dorsal cutaneous nerve.Anatomical note: Some textbooks still call the lateral dorsal cutaneous nerve the sural nerve.
  17. 17Saphenous nerve branches fromBranch of the femoral nerve in the thigh.
  18. 18courseCourses with the great saphenous vein in the leg.
    Terminates on the dorsum of the foot by innervating the skin on the medial side of the foot up to the first MTP.
  19. 19Anatomical note: The saphenous nerve is the only nerve of the foot that is not a branch of the sciatic nerve..
  20. 20Plantar and posterior aspect of the foot innervated by:Tibial nerve
    Sural nerve:
  21. 21Tibial nerveMedial calcaneal nerve.
    Medial plantar nerve.
    Lateral plantar nerve.
  22. 22Sural nerveLateral calcaneal nerve
  23. 23Medial plantar nerve branches fromBranch of the tibial nerve.
  24. 24courseCourses distally with the medial plantar vessels between the abductor hallucis and flexor digitorum brevis muscles.
    As it courses distally it gives off cutaneous, muscular and articular branches.
    It terminates by dividing into a plantar proper digital and three plantar common digital branches.
  25. 25Cutaneous branches innervatesInnervate the skin on the medioplantar aspect of the foot.
  26. 26Muscular branches innervatesthe abductor hallucis and flexor digitorum brevis muscles before the medial plantar nerve divides into plantar proper and plantar common digital branches.
  27. 27Articular branches innervatesjoints on the medial portion of the tarsus.
  28. 28Plantar proper digital branch innervatesthe flexor hallucis brevis and the skin on the medioplantar aspect of the hallux.
  29. 29First plantar common digital branch innervatesthe first lumbrical muscle and then divides into two plantar proper digital branches for the skin on the adjacent sides of the hallux and second toes.
  30. 30Second plantar common digital branch:Divides into two plantar proper digital branches for the skin on the adjacent sides of the second and third toes.
  31. 31Third plantar common digital branch:Divides into two plantar proper digital branches for the skin on the adjacent sides of the third and fourth toes.
  32. 32Clinical note: The third plantar common digital branch is the common site of a Morton’s neuroma.Anatomical note: The third plantar common digital branch communicates with the plantar common digital branch of the superficial division of the lateral plantar nerve.
  33. 33Lateral plantar nerve branches fromBranch of the tibial nerve.
  34. 34courseCourses distally with the lateral plantar vessels.
    As it courses distally it gives off cutaneous, muscular and articular branches.
    It terminates by dividing into a superficial and deep branch.
  35. 35Cutaneous branches innervatesthe skin on the lateroplantar aspect of the foot.
  36. 36Muscular branches innervatesInnervate the abductor digiti minimi and
    quadratus plantae muscles before the lateral plantar nerve divides into a superficial and deep branch.
  37. 37Clinical note: Entrapment of the first branch of the lateral plantar nerve to the abductor digiti minimi (Baxter’s Nerve) causes heel pain due to its sensory innervation of the periosteum of the calcaneus in this area..
  38. 38Articular branches innervatesjoints on the lateral portion of the tarsus.
  39. 39Plantar proper digital branch innervatesthe flexor digiti minimi brevis, fourth dorsal interosseous, and third plantar interosseous muscle
    and the skin on the lateroplantar aspect of the fifth toe.
  40. 40Plantar common digital branch – Divides intotwo plantar proper digital branches for the skin on the adjacent sides of the fourth and fifth toes.
  41. 41Anatomical note: The plantar common digital branch communicates with the third plantar common digital branch of the medial plantar nerve..
  42. 42Deep branch courseCourses with the plantar arch portion of the lateral plantar artery.
  43. 43deep branch innervatesadductor hallucis
    second, third, and fourth lumbricals
    first, second, and third dorsal interosseous
    first, and second plantar interosseous muscles.
  44. 44Medial calcaneal nerve branchesBranch of the tibial nerve.
  45. 45innervatesthe skin on the plantar and medial aspect of the heel.
  46. 46Clinical note: Entrapment of the medial calcaneal nerve is a common cause of heel pain..
  47. 47Lateral calcaneal nerve branchesBranch of the sural nerve.
  48. 48innervatesthe skin on the posterior and lateral aspect of the heel.
  49. 49Plantar proper digital nerves branchesBranches of the medial and lateral plantar nerves.
  50. 50courseGive off cutaneous and articular branches along their respective quadrant of a digit.
    Terminate in the area of the ungual tuberosity by sending branches to the distal end of the digit.
    At the level of the distal phalanx they send branches dorsally to the structures around the nail.
  51. 51Clinical note: For a digital block all four digital nerves are anesthetized..

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Flashcards on n part 2, created by Shylla T on 01/05/2021.
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Shylla T
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