click below
click below
Normal Size Small Size show me how
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 |