Muscles Flashcards
(49 cards)
Popliteus Origin
Lateral Condyle of the femur
Popliteus Insertion
Proximal posterior aspect of tibia
Popliteus Actions
-Medially rotate the flexed knee at the tibiofemoral joint
-flex the knee at tibiofemoral joint
popliteus innervation
Tibial nerve (l4,l5,s1)
Tibialis posterior origin
proximal, posterior shafts of the tibia and fibula and interosseous membrane
tibialis posterior insertion
all 5 tarsal bones and bases of 2nd - 4th metatarsals
tibialis posterior actions
plantar flex the ankle at the talocrural joint
invert the foot
tibialis posterior innervation
tibial nerve
tibialis posterior is in which compartment of the leg
posterior compartment
tibialis posterior has a major role in supporting which arch of the foot?
medial
tibialis posterior causes….?
weakness causes overpronation
flexor digitorum longus origin
middle posterior surface of tibia
flexor digitorum longus insertion
distal phalanges of 2nd-5th toes
flexor digitorum longus actions
flex 2nd-5th toes at the mtp and ip joints,weak plantarflexions of ankle at the talocrural joint and invert the foot
flexor digitorum longus innervation
tibial nerve
Flexor hallucis longus orgin
middle half of posterior fibula
flexor hallucis longus insertion
distal phalanx of 1st toe
flexor hallucis longus actions
-flex the 1st toe at the mtp and ip joints
-weak plantar flexion of ankle at talocrural joint
- invert the foot at the subtalar joint
flexor hallucis longus innervation
tibial nerve
plantaris origin
lateral supracondylar of the femur
plantaris insertion
calcaneus via the calcaneal tendon
plantaris actions
weak flexion of the knee at the tibiofemoral joint
- weak plantar flexion of the ankle at the talocrural joint
plantaris innervation
tibial nerve l4-s2
fibularis brevis origin
distal 2/3 of lateral fibula