LATERAL PLANTAR ARTERY

 

ORIGIN: Posterior tibial artery.

COURSE/DISTRIBUTION: This artery arises with the medial plantar artery as terminal branch of the posterior tibial artery under the flexor retinaculum. It then passes laterally, accompanied by lateral plantar nerve to the lateral border of the sole, where it runs to the base of the fifth metatarsal bone. It turns deep to accompany the deep branch of the lateral plantar nerve at this point and runs across the bases of the metatarsal bones, forming the plantar arch. It then runs to the interval between the bases of the 1st and 2nd metatarsal bone to anastomose with the dorsalis pedis artery by which the plantar arch is completed.  It passes between the calcaneus and abductor hallucis as it journeys across the sole from the proximal to the distal end. It lies in the interval between flexor digitorum brevis and flexor accessorius. It gives off a superficial branch, which runs on the lateral aspect of the little toe as the proper digital artery of the lateral aspect of that toe.

 

BRANCHES:

  • Muscular branches
  • Superficial
  • Calcaneal
  • Anastomotic branches

 

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