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Lateral plantar nerve
From Wikipedia, the free encyclopedia
| Nerve: Lateral plantar nerve | ||
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| The plantar nerves. | ||
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| Diagram of the segmental distribution of the cutaneous nerves of the sole of the foot. | ||
| Latin | n. plantaris lateralis | |
| Gray's | subject #213 963 | |
| Innervates | sole, Abductor digiti minimi muscle (foot) | |
| From | tibial nerve | |
| Dorlands/Elsevier | n_05/12566524 | |
The lateral plantar nerve (external plantar nerve) supplies the skin of the fifth toe and lateral half of the fourth, as well as most of the deep muscles, its distribution being similar to that of the ulnar nerve in the hand.
It passes obliquely forward with the lateral plantar artery to the lateral side of the foot, lying between the Flexor digitorum brevis and Quadratus plantæ and, in the interval between the former muscle and the Abductor digiti quinti, divides into a superficial and a deep branch. Before its division, it supplies the Quadratus plantæ and Abductor digiti quinti.
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The superficial branch (ramus superficialis) splits into a proper and a common digital nerve; the proper digital nerve supplies the lateral side of the little toe, the Flexor digiti quinti brevis, and the two Interossei of the fourth intermetatarsal space; the common digital nerve communicates with the third common digital branch of the medial plantar nerve and divides into two proper digital nerves which supply the adjoining sides of the fourth and fifth toes.
The deep branch (ramus profundus; muscular branch) accompanies the lateral plantar artery on the deep surface of the tendons of the Flexor muscles and the Adductor hallucis, and supplies all the Interossei (except those in the fourth metatarsal space), the second, third, and fourth Lumbricales, and the Adductor hallucis.
 Coronal section through right talocrural and talocalcaneal joints. |
 Nerves of the dorsum of the foot. |
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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