- Tibial nerve
Name = PAGENAME
Latin = n. tibialis
GraySubject = 213
GrayPage = 960 |
Caption = Plan of sacral and pudendal plexuses. (Tibial nerve labeled at center left.)
Caption2 = Nerves of the right lower extremity Posterior view.
Innervates = "Medial:"
abductor hallucis, flexor digitorum brevis, flexor hallucis brevis, first lumbrical
quadratus plantae, flexor digiti minimi, adductor hallucis, the interossei, three lumbricals. and abductor digiti minimi
sacral plexusvia sciatic nerve
medial plantar nerve, lateral plantar nerve
MeshName = Tibial+Nerve
MeshNumber = A08.800.800.720.450.760.820
DorlandsPre = n_05
DorlandsSuf = 12566929
The tibial nerve is a branch of the
sciatic nerve. The tibial nerve passes through the popliteal fossato pass below the arch of soleus.
In the popliteal fossa the nerve gives off branches to
gastrocnemius, popliteus, soleusand plantarismuscles, an articular branch to the knee joint, and a cutaneous branch that will become the sural nerve. The sural nerve is joined by fibers from the common peroneal nerveand runs down the calf to supply the lateral side of the foot.
Below the soleus muscle the nerve lies close to the
tibiaand supplies the tibialis posterior, the flexor digitorum longusand the flexor hallucis longus. The nerve passes into the foot below the medial malleolus. Here it is bound down by the flexor retinaculumin company with the posterior tibial artery.
In the foot, the nerve divides into medial and lateral plantar branches.
Medial plantar nerve
medial plantar nervesupplies: the abductor hallucis, the flexor digitorum brevis, the flexor hallucis brevisand the first lumbrical. Cutaneous distribution of the medial planter nerve is to the medial sole and medial three and one half toes, including the nail beds on the dorsum (like the median nerve in the hand).
Lateral plantar nerve
lateral plantar nervesupplies quadratus plantae, flexor digiti minimi, adductor hallucis, the interossei, three lumbricals. and abductor digiti minimi. Cutaneous innervationis to the lateral sole and lateral one and one half toes (like the ulnar nerve).
* [http://mywebpages.comcast.net/wnor/poplitealfossacontents.jpgImage - upper, at comcast.net]
* [http://www.southfloridasportsmedicine.com/gif_jpg/pa_2_pic.jpgImage - lower, at southfloridasportsmedicine.com]
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