Fibularis muscles

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The fibularis muscles (also called peroneal muscles or peroneals or peroneus muscles or peronæus) are a group of three muscles fibularis (peronæus) longus, brevis, and tertius originating on the fibula and inserting on the metatarsals.

The "longus" and "brevis" are much more similar to each other than they are to the "tertius", as shown in the table below.

Name Compartment Action Nerve Artery
Fibularis longus or peroneus longus lateral compartment eversion and plantarflexion superficial fibular nerve fibular artery
Fibularis brevis or peroneus brevis lateral compartment eversion and plantarflexion superficial fibular nerve fibular artery
Fibularis tertius or peroneus tertius anterior compartment eversion and dorsiflexion deep fibular nerve anterior tibial artery

The peroneus muscles are highly variable and several variants have been noted as being occasionally present, such as peroneus digiti minimi and peroneus quartus.[1] The quartus is more closely associated with the tendons of the extensor digitorum longus, and may send a small tendon to the fifth digit (Digitus minimus pedis).[2]

See also[edit]

References[edit]

  1. ^ Chaitow (2000), p 554
  2. ^ Platzer (2004), p 260