Leg Anatomy Flashcards
Gastrocnemius
O:
Medial head: distal medial condyle of femur
Lateral head: upper PL surface of lateral condyle
I: calcaneous via calcaenous tendon
I: tibial nerve (S1, S2)
A: flexes knee, plantar flexes foot
Plantaris
O: lateral supracondylar line of femur and oblique popliteal ligament of knee
I: calcaneous via calcaneaous tendon
I: tibial nerve
A: flexes knee and plantar flexes foot
Soleus
solar line and medial boarder of tibia
I: calcaneous via calcareous tendon
I: tibial nerve
A: plantar flexes foot
FDL
O: medial side of tibial
I: plantar surfaces of bases of detail phalanx of lateral 4 toes
i: tibial nerve
A: flexes 4 toes
popliteus
O: lateral femoral condyle i: posterior surface of medial condyle i: tibial nerve A: stabilizes knee joint - lateral rotation of tibia on femur unlocks knee on fixed tibia
FHL
o: posterior surface of fibula and IO membrane
i: plantar aspect of great toe
i: tibial nerve:
o: flexes great toe
tibialis posterior
o: posterior surface of interosseous membrane and adjacent regions of tibia and fibula
i: MAINly to tuberosity of navicular
i: tibial nerve
A: inverts foot and plantarflexes , support medial arch
fibulas longus
O: upper lateral surface of fibula, head of fibula and occasionaly the lateral condyle
i: undersurface of lateral side of distal end of medial cuneiform and base of 1st metatarsal
i: superficial fibular nerve
A: eversion
fibular brevis
O: lower third of lateral surface of shaft of fibula
i: lateral tubercle of base of metatarsal V
I: superficial fibular nerve
A: eversion
tibialis anterior
O: lateral surface of tibial and adjacent IO membrane
I: medial cuneiform and adjacent surfaces on base of 1st metatarsal
i: deep fibular nerve (L4-5)
a: inversion of foot, DORSIFLEXION of foot, medial arch support
extensor hallicus longus
O: middle 1/3 of FIBULA and IO membrane
I: dorsal surface of bade of distal phalanx of greater tow
I: deep fibular nerve
A: extends big toe, dorsiflexion of foot
EDL
o: proximal one half of medial surface of fibula and related lateral surface of tibia
I: dorsal digital expansions into bases and middle phalanges of lateral four toes
I: deep fibular nerve ( L5, S1)
A: extension of lateral four toes and dorsiflexion of foot
fibulas teritus
o: distal part of medial surface of fibula
i: dorsomedial surface of base of metatarsal V
I; deep fibular nerve
A: dorsiflex and eversion
