Posterior Leg Compartment Muscles Flashcards
What are the Origin’s of Soleus
Posterior aspect of Head of Fibula, Superior 1/4 of Posterior surface of Fibula, Soleal Line of Tibia, Medial Border of Tibia
What is the Insertion of Soleus
Calcaneus via Achilles Tendon
What are the Actions of Soleus
Plantar Flexion, Steadies Leg on Foot
What is the Innervation of Soleus
Tibial Nerve
What are the Origin’s of Gastrocnemius
Medial Head - Superior aspect of Medial Femoral Condyle
Lateral Head - Lateral aspect of Lateral Femoral Condyle
What is the Insertion of Gastrocnemius
Calcaneus via Achilles Tendon
What are the Actions of Gastrocnemius
Plantar Flexion of Ankle, Knee Flexion
What is the Innervation of Gastrocnemius
Tibial Nerve
What is the Location of Popliteus
Deep to Plantaris; floor of Popliteal Fossa
What are the Origins of Popliteus
Lateral Femoral Condyle and Lateral Meniscus
What is the Insertion of Popliteus
Posterior superior surface of Tibia (superior to Soleal line)
What are the Actions of Popliteus
Unlocks the Knee; weak Knee Flexion
What is the Innervation of Popliteus
Tibial Nerve
What are the Origins of Flexor Hallucis Longus
Inferior 2/3 of Posterior surface of Fibula, Inferior part of Interosseous Membrane
What is the Insertion of Flexor Hallucis Longus
Distal Phalanx of Great Toe on Plantar surface
What are the Actions of Flexor Hallucis Longus
Flexion of Great Toe, Plantar Flexion of Ankle
What is the Innervation of Flexor Hallucis Longus
Tibial Nerve
What is the Location of Plantaris
Between Gastrocnemius and Soleus, (often absent)
What are the Origins of Plantaris
Inferior of Lateral Supracondylar Line of Femur; Oblique Popliteal Ligament
What is the Insertion of Plantaris
Calcaneus via Achilles Tendon
What is the Action of Plantaris
Weak Plantar Flexion
What are the Origins of Flexor Digitorum Longus
Middle Posterior surface of Tibia, Inferior to Soleal Line, Fascia covering Tibialis Posterior
What is the Insertion of Flexor Digitorum Longus
Base of Distal Phalanx of Digit’s 2-5 on Plantar surface
What are the Actions of Flexor Digitorum Longus
Flexion of Toes, Plantar Flexion of Ankle
What is the Innervation of Flexor Digitorum Longus
Tibial Nerve
What is the Location of Tibialis Posterior
Deepest of group
What are the Origins of Tibialis Posterior
Posterior surface of Tibia, inferior to Soleal Line, Posterior surface of Fibula and Interosseous Membrane
What are the Insertions of Tibialis Posterior
Navicular, Cuboid, Medial Cuneiform, Bases of Metatarsals 2-4 (plantar surface)
What is the Innervation of Tibialis Posterior
Tibial Nerve
