Leg Flashcards
Name the muscles of the anterior leg
Extensor digitorum longus
Extensor halluces longus
Fibularis peroneus tetius
Tibialis anterior
What nerve innervates all anterior leg muscles?
Deep fibular nerve
What artery supplies all anterior leg muscles?
Anterior tibial artery
What do all anterior leg muscles do?
Dorsiflex foot at ankle
What is the action of the extensor digitorum longus?
Extends lateral 4 digits
What is the action of the extensor halluces longus?
Extend great toe
What is the action of the fibularis peroneus tetius?
Aid eversion of the foot
What is the action of the tibialis anterior?
Invert the foot
What is the attachments of the extensor digitorum longus?
Lateral condyle of tibia to DIP of lateral 4 digits
What is the attachments of the extensor halluces longus?
Middle of anterior part of fibula to base of distal phalanx of great toe
What is the attachments of the fibularis peroneus tetius?
Distal third of anterior surface of fibula to dorsum of base of 5th metatarsal
What is the attachments of the tibialis anterior?
Lateral condyle to medial surface of medial cunieform
Name the lateral leg muscles
Fibularis peroneus brevis
Fibularis peroneus longus
What nerve innervates the lateral leg muscles?
Superficial fibular nerve
What artery supplies the lateral leg?
Anterior tibial fibular arteries
What is the action of the lateral leg muscles?
Evert the foot and weakly plantarflex the foot at the ankle
What is the attachments of the fibulas peroneus brevis?
Distal 2/3 of lateral surface of fibula to dorsal surface of tuberosity on lateral side of 5th metatarsal
What is the attachments of the fibularis peroneus longus?
Head and proximal 2/3 of lateral fibula to plantar base of 1st metatarsal and medial cuneiforms
Name the posterior (superficial) leg muscles
Gastrocnemuis
Soleus
Plantaris
What nerve innervates the posterior leg muscles?
Tibial nerve
What artery supplies the posterior (superficial) leg muscles?
Popliteal artery Posterior tibial artery (3 except plantaris) Fibular artery (only soleus)
What is the action of posterior superficial leg muscles?
Plantarflex the foot at the ankle
What muscles assists the gastrocnemius?
Plantaris
What muscle stabilises the leg over the foot?
Soleus
What muscle raises the heel during walking?
Gastrocnemuis
What action does the gastrocnemius assist in?
Flexion of knee joint
Where do all posterior (superficial) leg muscles attach to inferiorly?
Posterior aspect of calcaneus via calcaneal tendon
What is the superior attachment of the gastrocnemius?
Lateral condyle of femur - lateral head
Medial condyle of femur - medial head
What is the superior attachment of the soleus?
Posterior of head of fibula
What is the superior attachment of the plantaris?
Inferior end of lateral supracondyle line of femur
Name the posterior (deep) leg muscles
Popliteus
Tibialis posterior
Flexor digitorum longus
Flexor hallucis longus
What nerve innervates posterior (deep) leg muscles?
Tibial nerve
What arteries supply the popliteus?
Inferior medial and lateral geniular arteries
What artery supplies the tibialis posterior?
Fibular artery
What artery supplies the flexor digotorum longus?
Posterior tibial artery
What artery supplies the flexor hallucis longus?
Fibular artery
What is the attachments of the popliteus?
Lateral condyle of femur to posterior tibia
What is the attachments of the tibialis posterior?
Posterior tibia below soleal line to tuberosity of navicular bone
What is the attachments of the flexor digitorum longus?
Medial part of posterior tibia to plantar bases of distal phalanges of lateral 4 digits
What is the attachments of the flexor hallucis longus?
Distal 2/3 of posterior fibula to base of distal phalanx of great toe
