3 L6 Muscles of the Leg Flashcards
(21 cards)
Gastrocnemius actions at knee and ankle
Knee- flexion
Ankle- plantarflexion
Propulsion during gait
Soleus action at ankle and function
Ankle- plantarflexion
Important postural muscle
3 Deep leg flexors
Tibialis posterior - Flexor digitorum longus - Flexor hallucis longus
TP - FDL - FHL
Deep flexor role in inversion
Pass posterior to medial malleolus so role in inversion
Acronym for what passes through the tarsal tunnel from medial to lateral
Tom Dick And Very Nervous Harry
What passes though tarsal tunnel from medial to lateral
Tibialis posterior
flexor Digitorum longus
Artery (posterior tibial)
Vein (posterior tibial)
Nerve (tibial)
flexor Hallucis longus
Deep foot flexor tendons function
Plantarflexion- Stabilise medial longitudinal arch
3 anterior leg muscles
Tibialis anterior - Extensor digitorum longus - Extensor hallucis longus
Anterior leg muscle functions
Dorsiflexion - Toe extension - Inversion - Stabilise medial longitudinal arch
What muscle groups contribute to inversion and eversion
Inversion- Anterior leg muscles
Eversion- Lateral leg muscles
Other name for fibular
Peroneus
2 Lateral leg muscles
Fibularis longus and Fibularis brevis
2 arches that lateral leg muscles stabilise
Lateral longitudinal- both
Transverse- fibularis longus
Lateral leg muscle functions
Ankle- Weak plantarflexion
Subtalar- Eversion
Leg and foot blood supply starting from femoral artery
Femoral artery - Popliteal artery - Anterior and Posterior tibial arteries - Fibular artery (branch of posterior tibial artery)
What does the sciatic nerve divide into and where does this happen
The tibial nerve and the common fibular nerve- Lower third of posterior thigh
What does the tibial nerve innervate
Posterior compartments of thigh and leg
What does the common fibular nerve innervate
Short head of biceps femoris
Describe the division of the common fibular nerve
Divides into superficial and deep branches near head of fibula
Describe the deep fibular nerve
Accompanies anterior tibial artery and vein - Innervates anterior compartments of leg
What does the superficial fibular nerve innervate
Lateral compartment of leg