Fibularis (disambiguation)
Encyclopedia
The fibularis muscles 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.
The peroneus muscles are highly variable and several variants have been noted as being occasionally present, such as peroneus digiti minimi and peroneus quartus. The quartus is more closely associated with the tendons of the extensor digitorum longus
, and may send a small tendon to the fifth digit (assumably described as the digiti minimi above).
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 Fibularis longus In human anatomy, the peroneus longus is a superficial muscle in the lateral compartment of the leg, and acts to evert and plantar flex the ankle.... |
lateral compartment | eversion Eversion (kinesiology) Eversion is the movement of the sole of the foot away from the median plane. It occurs at the subtalar joint.Peroneus longus and peroneus brevis evert. Both muscles are innervated by the superficial fibular nerve.... and plantarflexion Plantarflexion Plantarflexion is the movement which increases the approximate 90 degree angle between the front part of the foot and the shin, as when depressing an automobile pedal... |
superficial fibular nerve Superficial fibular nerve The superficial fibular nerve innervates the fibularis longus and fibularis brevis muscles and the skin over the greater part of the dorsum of the foot .It passes forward between the fibularis muscles and the extensor digitorum longus, pierces the deep... |
fibular artery Fibular artery In anatomy, the fibular artery supplies blood to the lateral compartment of the leg and is typically a branch of posterior tibial artery.-Structure:... >- | Fibularis brevis Fibularis brevis The peroneus brevis muscle lies under cover of the peroneus longus, and is a shorter and smaller muscle. It is also innervated by the superficial fibular nerve... |
lateral compartment | eversion and plantarflexion | superficial fibular nerve | >- | anterior compartment Anterior compartment of leg -Muscles:The muscles of the compartment are* tibialis anterior* extensor hallucis longus* extensor digitorum longus* fibularis tertius -Nerve supply:... |
eversion and dorsiflexion Dorsiflexion Dorsiflexion is the movement which decreases the angle between the dorsum of the foot and the leg, so that the toes are brought closer to the shin. The movement moving in opposite directions is called plantarflexion... |
deep fibular nerve Deep fibular nerve The deep fibular nerve begins at the bifurcation of the common fibular nerve, between the fibula and upper part of the fibularis longus, passes infero-medially, deep to extensor digitorum longus, to the anterior surface of the interosseous membrane, and comes into relation with the anterior... |
anterior tibial artery Anterior tibial artery The anterior tibial artery of the lower limb carries blood to the anterior compartment of the leg and dorsal surface of the foot, from the popliteal artery.It is accompanied by a deep vein, the anterior tibial vein, along its course.... |
The peroneus muscles are highly variable and several variants have been noted as being occasionally present, such as peroneus digiti minimi and peroneus quartus. The quartus is more closely associated with the tendons of the extensor digitorum longus
Extensor digitorum longus muscle
The Extensor digitorum longus is a pennate muscle, situated at the lateral part of the front of the leg.-Origin and insertion:It arises from the lateral condyle of the tibia; from the upper three-fourths of the anterior surface of the body of the fibula; from the upper part of the interosseous...
, and may send a small tendon to the fifth digit (assumably described as the digiti minimi above).