LOWER LIMB: ANKLE AND FOOT Flashcards
bones of ankle
tibia
fibula
talus
calcaneus
region where leg and foot meet
talocrural joint
joints of ankle
talocrural joint or ankle joint proper
subtalar joint
inferior tibiofibular joint
ankle joint type
synovial hinge joint
in how many axes does the ankle joint allow movement
one axis (uniaxial)
factors that make ankle joint strong and stable
shape of articulating bones
strength of surrounding ligaments and tendons
ligaments of ankle joint capsule
medial collateral ligament
lateral collateral ligament
medial ligament is also known as
deltoid ligament
which ligament of the ankle joint capsule is stronger and why
medial ligament
it has 4 bands
bands of medial ligament
posterior tibiotalar ligament
anterior tibiotalar ligament
tibiocalcaneal ligament
tibionavicular ligament
bands of lateral ligament
anterior tibiofibular ligament
calcaneofibular ligament
posterior talofibular ligament
movements of ankle joint
dorsiflexion
plantarflexion
inversion and eversion of foot occur at
tarsal joint
muscles responsible for dorsiflexion
tibialis anterior
extensor hallucis longus
extensor digitorum longus
fibularis (peroneus) tertius
dorsiflexion is limited by
tendon calcaneus (Achille’s tendon)
posterior fibers of medial ligament
calcaneofibular ligament
muscles responsible for plantarflexion
gastrocnemius
plantaris
soleus
peroneus longus
peroneus brevis
flexor digitorum longus
flexor extensor longus
posterior tibialis
functions of ankle joint
stability function:
stable base for support
rigid lever for effective push off (during gait)
mobility functions:
absorbs rotation imposed by proximal joints
shock absorber
adjusts foot over variety of surfaces
blood supply of ankle joint
malleolar rami of anterior and posterior tibial and peroneal arteries
nerve supply of ankle joint
deep peroneal nerve
saphenous nerve
sural nerve
tibial nerve
tibial nerve is known as ______ in sole
plantar nerve
