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Muscle Group 12
Muscles That Move the Foot
Question | Answer |
---|---|
Tibialis anterior | Origin: Tibia (lateral condyle & surface) Insertion: Medial cuneiform & 1st metatarsal Action: Dorsiflexes & inverts foot at angle |
Extensor digitorum longus | Origin: Tibia (lateral condyle) Insertion: Middle & distal phalanges Action: Dorsiflexes foot at ankle; Extends toes |
Fibularis (Peroneus) longus | Origin: Fibula (head) Insertion: By tendon curving under the foot to 1st metatarsal & medial cuneiform Action: Plantar flexes & everts foot at ankle |
Gastrocnemius (2 heads) | Origin: Femur (lateral & medial condyles) Insertion: Calcaneus via calcaneal (Achilles) tendon Action: Plantar flexes at ankle; Flexes leg at knee |
Soleus | Origin: Tibia (posterior surface); Fibula (posterior surface) Insertion: Calcaneus via calcaneal (Achilles) tendon Action: Plantar fleses foot at ankle |
Flexor digitorum longus (tendon posterior to medial malleolus) | Origin: Tibia (posterior surface) Insertion: Distal phalanges of toes 2-5 Action: Plantar flexes & inverts foot at ankle; Flexes toes |
Tibialis posterior | Origin: Tibia (posterior surface); Fibula (posterior surface) Insertion: Under foot medially into tarsals & metatarsals Action: Plantar flexes & inverts foot at ankle |