Soleus

Musculus soleus

A broad flat muscle in the superficial posterior compartment of the leg, deep to the gastrocnemius. It originates from the soleal line of the tibia and the posterior surface of the fibular head. It joins the gastrocnemius to form the calcaneal (Achilles) tendon.

Type Muscle
Système corporel Muscular
Région corporelle Leg
Nom latin Musculus soleus
FMA ID 22542

Fonction

A powerful plantarflexor of the ankle. Unlike the gastrocnemius, it acts regardless of knee position and is particularly important for postural maintenance and push-off during walking and running.

Signification clinique

Soleus muscle pump failure contributes to venous stasis and deep vein thrombosis. Soleus tears are common calf injuries in runners. The soleus is an important clinical target for compartment syndrome assessment.

Questions fréquentes

What is the soleus?
The soleus is a broad, flat skeletal muscle located in the superficial posterior compartment of the leg, deep to the gastrocnemius. Together with the gastrocnemius, it forms the triceps surae muscle group.
Where is the soleus located?
The soleus lies deep to the gastrocnemius in the posterior leg compartment. It originates from the soleal line of the tibia and the posterior surface of the fibular head, and joins the gastrocnemius to insert via the calcaneal (Achilles) tendon on the heel.
What is the function of the soleus?
The soleus is a powerful plantarflexor of the foot at the ankle joint, and unlike the gastrocnemius, it acts independently of knee position. It also plays an important role in maintaining upright posture and propelling the body forward during walking and running.
What conditions may be associated with the soleus?
The soleus may be involved in Achilles tendon pathology, calf strain injuries, and deep vein thrombosis given its proximity to deep venous structures. It is also a muscle commonly involved in exercise-related compartment syndrome of the posterior leg.
What does the soleus look like?
The soleus is a wide, flat, pennate muscle with a broad attachment spanning the tibia and fibula. On cross-section imaging it appears as a large muscle mass deep to the gastrocnemius, contributing to the prominent bulk of the calf.

Structures associées

muscle head caput (musculus) muscle tissue muscular tissue musculature muscle group iliopsoas Hyrtl's muscle orbital septum septum orbitale pes anserinus of tibia pes anserine right bundle branch crus dextrum (fasciculi atrioventricularis) muscle belly belly

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Educational Disclaimer

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.