Group · Muscular system
Superficial part of posterior compartment of leg
Pars superficialis compartimenti posterioris cruris
- System
- Muscular system
- Regions
- Lower limb
- Part of
- Posterior compartment of leg
DescriptionUnreviewed
- GASTROCNEMIUS
Origin of lateral head: lateral aspect of lateral condyle of femur
Origin of medial head: popliteal surface of femur; superior to medial condyle
Main action: Plantarflexes ankle when knee is extended; raises heel during walking; flexes leg at knee joint
- PLANTARIS
Origin: Inferior end of lateral supracondylar line of femur; oblique popliteal ligament
Innervation: Tibial nerve (S1, S2)
Insertion: Posterior surface of calcaneus via calcaneal tendon
Main action: Weakly assists gastrocnemius in plantarflexing ankle
- SOLEUS
Origin: Posterior aspect of head and superior quarter of posterior surface of fibula; soleal line and middle third of medial border of tibia; and tendinous arch extending between the bony attachments
Main action: Plantarflexes ankle independent of position of knee; steadies leg on foot
Source: Z-Anatomy · Text licence: CC BY-SA 4.0 · This text comes from the source data and has not been reviewed by a person yet.
Muscle attachments
Origin
Parts
Names
- Latin
- Pars superficialis compartimenti posterioris cruris
- English
- Superficial part of posterior compartment of leg
- French
- Partie superficielle du compartiment postérieur de la jambe
- Spanish
- Porción superficial del compartimento posterior de la pierna
- Portuguese
- Parte superficial do compartimento posterior da perna