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Foot and leg muscles
Muscles of the foot and leg
Question | Answer |
---|---|
Popliteus Origin | Lateral condyle of femur |
Popliteus Insertion | Posterior, upper tibia |
Popliteus Action | Initiates knee flexion |
Plantaris Origin | Lateral supracondylar line of femur |
Plantaris Insertion | Calcaneus via Achilles tendon |
Plantaris Action | Plantarflexion of the foot at ankle Inversion of foot at ankle |
Soleus Origin | Posterior surface of head of upper 1/3 of fibula Soleal line of tibia Posterior Aspect of tibia |
Soleus Insertion | Calcaneus via the Achilles tendon |
Soleus Action | Plantarflexion of foot at ankle Inversion of foot at ankle |
Gastrocnemius Origin | Lateral head: lateral condyle of femur Medial head: medial condyle of femur |
Gastrocnemius Insertion | Calcaneus via Achilles tendon |
Gastrocnemius Action | Plantarflexion of foot at ankle Inversion of foot at ankle |
Peroneus Tertius Origin | Distal, lateral surface of fibula |
Peroneus Tertius Insertion | Lateral surface of 5th metatarsal |
Peroneus Tertius Action | Dorsiflexion of foot at ankle Eversion of foot at ankle |
Peroneus Brevis Origin | Distal half of lateral surface of fibula |
Peroneus Brevis Insertion | Lateral base of 5th metatarsal |
Peroneus Brevis Action | Eversion of foot at ankle Plantarflexion of foot at ankle |
Peroneus Longus Origins | Head of fibula Lateral surface of fibula |
Peroneus Longus Insertions | Plantar surface, base of 1st metatarsal Tarsal |
Peroneus Longus Action | Eversion of foot at ankle Plantarflexion of foot at ankle |
Tibialis Anterior Origin | Lateral condyle of tibia |
Tibialis Anterior Insertions | Plantar surface: base of 1st metatarsal Tarsal |
Tibialis Anterior Actions | Dorsiflexion of foot at ankle Inversion of foot at ankle |
Extensor Digitorum Longus Origins | Lateral condyle of tibia Head of fibula Proximal 3 quarters of anterior fibula |
Extensor Digitorum Longus Insertion | Dorsal surface: bases of distal phalanges of toes 2-5 |
Extensor Digitorum Longus Actions | Extension of 4 lateral toes Dorsiflexion of foot at ankle Eversion of foot at ankle |
Extensor Hallucis Longus Origin | Middle, anterior surface of fibula |
Extensor Hallucis Longus Insertion | Dorsal, distal phalanx of big toe |
Extensor Hallucis Longus Actions | Extension of big toe Assists dorsiflexion of foot at ankle |
Tibialis Posterior Origins | Posterior tibia Posterior fibula Interosseus membrane |
Tibialis Posterior Insertion | Bases of metatarsals 2-4 |
Tibialis Posterior Actions | Plantarflexion of foot at ankle Inversion of foot at ankle |
Flexor Digitorum Longus Origin | Posterior shaft of tibia |
Flexor Digitorum Longus Insertion | Plantar surface: bases of distal phalanges of toes 2-5 |
Flexor Digitorum Longus Actions | Flexion of toes 2-5 Assists in plantarflexion of foot at ankle |
Flexor Hallucis Longus Origin | Posterior, middle surface of fibula |
Flexor Hallucis Longus Insertion | Plantar surface, base of distal phalanx of big toe |
Flexor Hallucis Longus Action | Flexion of big toe |
Extensor Digitorum Brevis Origin | Anterior calcaneus |
Extensor Digitorum Brevis Insertion | Tendon of extensor digitorum longus |
Extensor Digitorum Brevis Action | Assists extension of toes 1-4 |
Lumbricals Origin | Tendon of flexor digitorum longus |
Lumbricals Insertion | Medial surface, bases of proximal phalanges of toes 2-5 |
Lumbricals Action | Flexion of toes 2-5 |
Quadratus Plantae Origin | Calcaneus: Plantar surface |
Quadratus Plantae Insertion | Tendon of flexor digitorum longus |
Quadratus Plantae Action | Assists flexion of toes 2-5 |
Flexor Hallucis Brevis Origin | Plantar surface: tarsals |
Flexor Hallucis Brevis Insertion | Both sides: base of proximal phalanx of big toe |
Flexor Hallucis Brevis Action | Flexion of big toe |
Adductor Hallucis Origin | Calcaneus: plantar surface Bases of proximal phalanges of toes 3-5 |
Adductor Hallucis Insertion | Base of proximal phalanx of big toe |
Adductor Hallucis Action | Adduction of big toe (toward mid line of foot) |
Flexor Digiti Minimi Origins | Base of 5th metatarsals Tarsal |
Flexor Digiti Minimi Insertion | Base of proximal phalanx of little toe |
Flexor Digiti Minimi Action | Flexion of the little (5th) toe |
Abductor Hallucis Origin | Medial plantar surface of calcaneus |
Abductor Hallucis Insertion | Medial side, base of proximal phalanx of big toe |
Abductor Hallucis Action | Abduction of big toe |
Flexor Digitorum Brevis Origin | Plantar surface of calcaneus |
Flexor Digitorum Brevis Insertion | Middle phalanges of toes 2-5 |
Flexor Digitorum Brevis Action | Flexion of toes 2-5 |
Abductor Digiti Minimi Origin | Lateral, plantar surface of calcaneus |
Abductor Digiti Minimi Insertion | Lateral side, base of proximal phalanx of 5th toe |
Abductor Digiti Minimi Action | Abduction of 5th toe |
Plantar Interossei Origin | bases of metatarsals 3-5 |
Plantar Interossei Insertion | Bases of proximal phalanges of toes 3-5 |
Plantar Interossei Action | Adducts toes 3-5 |
Dorsal Interossei Origin | Adjacent metatarsals |
Dorsal Interossei Insertion | Bases of proximal phalanges of toes 2-4 |
Dorsal Interossei Action | Flexion of toes 2-4 |