Soleus

Region: Leg & Foot Muscles · All leg & foot muscles

Soleus at a glance

OriginBack of the upper fibula and the soleal line of the tibia
InsertionBack of the calcaneus via the Achilles (calcaneal) tendon
ActionsPoints the foot downward (plantarflexion); Maintains posture when standing (works continuously)
Nerve supplyTibial nerve (S1–S2)

◆ Good to know

Called the 'second heart' because its contractions pump venous blood out of the calf; it works in standing while gastrocnemius dominates in running.

Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.