Leg Muscles Flashcards
Origin of Gastrocnemius
medial and lateral femoral condyle (two heads)
Insertion of Gastrocnemius, Soleus and Plantaris
As calcaneal tendon on posterior calcaneal (Plantaris lies most medially)
Innervation to posterior Led
Tibial Nerve (L4,L5,S1)
Action of superficial leg muscles
Plantarflex ankle
Origin of Soleus
Fibula head, proximal fibula and tibia shaft
Origin of Plantaris
Lateral femoral condyle
Origin of Popliteus
Proximal posterior tibia
Insertion of Popliteus
Lateral Femoral Condyle
Action of Popliteus
Rotates tibia medially therefore unlocking the knee
Origin of FHL
Posterior inferior fibula
Origin of FDL
Posterior inferior tibia
Origin of Tibialis posterior
Posterior middle tibia and adjacent interosseous membrane
Insertion of FHL
Base of distal 1st phalanx
Insertion of FDL
Bases of distal 2nd-5th distal phalanx
Insertion of Tibialis Posterior
Navicular, medial and middle cuneiform, 2nd to 4th metatarsals
Action of FHL and FDL
Flex toes
Action of Tibialis Posterior
Inversion of foot
Origin of Fibularis Longus
Head of fibula and lateral 1/2 of shaft
Origin of Fibularis Brevis
Distal 1/2 of fibula shaft
Insertion of Fibularis Longus
Lateral Proximal 1st metatarsal
Insertion of Fibularis Brevis
Lateral Proximal 5th metatarsal
Innervation to Fibularis muscles
Superficial Fibular nerve (L5,S1,S2)
Action of Fibularis muscles
Evert and plantarflex foot
Origin of Tibialis Anterior
Lateral condyle of tibia and proximal 1/2 of shaft
Insertion of Tibilais Anterior
Medial side of medial cuneiform and 1st metatarsal
Origin of EHL
Distal 1/2 of fibula shaft
Insertion of EHL
Base of Distal 1st Phalanx
Origin of EDL
Proximal 1/2 of fibula shaft
Insertion of EHL
Base of Middle and Distal 2nd-5th Phalanx
Origin of Fibularis Tertius
Distal Fibular Shaft
Insertion of Fibularis Tertius
Dorsal Surface of base of 5th Metatarsal
Action of Fibularis Tertius
Dorsiflex and evert foot
Innervation to Anterior Leg muscles
Deep Fibular Nerve (L4, L5,S1)
