Muscles of the Leg Flashcards
Tibialis anterior origin
Lateral condyle and upper 2/3 of lateral surface of tibia
Interosseus membrane
Tibialis anterior insertion
Medial plantar surface of medial cuneiform and base of first metatarsal
Tibialis anterior innervation
Deep fibular (peroneal) nerve
Tibialis anterior function
Dorsiflex and invert at ankle
Extensor hallucis longus origin
Medial 2/3 of anterior surface of fibula and interosseus membrane
EHL insertion
base of distal phalanx and base of first metatarsal (partial)
EHL innervation
Deep peroneal nerve
EHL function
Extend first MPJ
Dorsiflex ankle
Supinate intertarsal joints
EHC origin
Extention of EHL tendon
EHC insertion
Medial surface of first MJP capsule
EHC function
Lift capsule of first MPJ to prevent entrapment
EDL origin
Lateral condyle of tibia
Head and anterior 3/4 of fibula
Interosseus membrane
EDL insertion
Extensor expansion of digits 2-5
EDL innervation
Deep peroneal nerve
EDL function
Extend MPJs
Dorsiflex and evert ankle
Peroneus tertius origin
Lower third of anterior fibula
Peroneus tertius insertion
Base of 5th metatarsal
Peroneus tertius innervation
Deep peroneal nerve
Peroneus tertius function
Dorsiflex and evert ankle
Peroneus longus origin
Head and upper 2/3 of lateral surface of fibula
Lateral tibial condyle
Peroneus longus insertion
Lateral base of 1st metatarsal
Lateral side of medial cuneiform
Peroneus longus innervation
Superficial peroneal nerve
Peroneus longus function
Plantarflex and evert ankle
Peroneus brevis origin
Lower 2/3 of lateral surface of fibula
Peroneus brevis insertion
Tuberosity of 5th metatarsal
Peroneus brevis innervation
Superficial peroneal nerve
Peroneus brevis function
Plantarflex and evert ankle
Gastrocnemius origin
Medial and lateral condyles of femur
Gastrocnemius insertion
Central part of posterior surface of calcaneus in common with soleus as tendo calcaneus
Gastrocnemius innervation
Tibial nerve
Gastrocnemius function
Plantarflex ankle
Flex knee
Soleus origin
Posterior surface of head and body of fibula
Soleal line of tibia
Middle third of tibia
Soleus insertion
Tendo calcaneus
Soleus function
Plantarflex ankle
Plantaris origin
Lateral supracondylar line of femur
Oblique popliteal ligament
Plantaris insertion
Medial side of posterior surface of calcaneus
Plantaris innervation
TIbial nerve
Plantaris function
Plantarflex ankle
Flex knee
Popliteus forms
Inferior portion of floor of popliteal fossa
Popliteus origin
Lateral condyle of femur
Arcuate popliteal ligament
Lateral meniscus
Popliteus insertion
Proximal to soleal line on body of tibia
Popliteus innervation
tibial nerve
Popliteus function
Flex knee
Rotate leg medially
Unlock knee
FHL origin
Distal 2/3 of posterior surface of fibula
FHL insertion
Base of terminal phalanx of first digit
FHL innervation
Tibial nerve
FHL function
Flex IPJ of first digit
Plantarflex ankle
Supinate intertarsal joints
FDL origin
Medial to vertical line on posterior proximal 2/3s of tibia
FDL innervation
Tibial nerve
FDL function
flexes IPJs and plantar flex ankle
Supinate intertarsal joints
TP origin
Upper 2/3s of posterior tibia lateral to vertical line
TP innervation
Tibial nerve
TP function
Supinate intertarsal joints
Plantarflex ankle