Common fibular nerve
The nervus fibularis communis ( Latin , "common fibula nerve ", synonym : Nervus peron (a) eus communis ) is one of the two main branches of the nervus ischiadicus . The other branch is the tibial nerve . The fibular nerve pulls the side of the knee, at the fibula head over and sends the lateral sural cutaneous nerve . At the fibula it divides into its two main branches:
- Superficial fibular nerve and
- Deep fibular nerve
Deep fibular nerve
The nervus fibularis profundus (Syn. Nervus peron (a) eus profundus , deep fibula nerve ) supplies the muscles that bring the dorsum of the foot closer to the shin and the extensors of the toe joints :
- Tibialis anterior muscle
- Extensor digitorum longus muscle
- Extensor digitorum brevis muscle
- Extensor digitorum lateralis muscle (absent in humans)
- Peronaeus tertius muscle
- Extensor hallucis longus muscle
- Extensor hallucis brevis muscle
In dogs and cats , it also innervates the peroneus longus and peroneus brevis muscles, which in humans are supplied by the superficial fibrous nerve .
In humans, the nerve also supplies the skin between the first (N. cutaneus hallucis lateralis) and second toe (N. cutaneus digiti secundi medialis) in a sensitive manner.
A paralysis of the deep peroneal nerve leads to an extended position in the ankle, the foot and the outer margin of the foot are lowered ( " pes equinovarus "). In animals, the ankle is stretched and the toes are bent, which means that the back of the foot is placed on the foot (so-called " killing "). The tibialis cranialis reflex , which is important in animal neurology, is mediated by the deep peroneal nerve.
Superficial fibular nerve
The superficial fibular nerve (syn. Peron nerve (a) eus superficialis , superficial fibula nerve ) innervates the
The nerve also innervates circumscribed areas of the skin on the lower leg and the back of the foot. In domestic mammals it only has the latter function, ie it is purely sensitive.
literature
- Franz-Viktor Salomon: nervous system, systema nervosum. In: Franz-Viktor Salomon, Hans Geyer, Uwe Gille (Ed.): Anatomy for veterinary medicine. 2nd revised and expanded edition. Enke, Stuttgart 2008, ISBN 978-3-8304-1075-1 , pp. 464-577.