Flashcards in Foot And Ankle Deck (26)
What joints are the tibiofibular joints?
proximal = synovial plane joint
distal = fibrous syndesmosis
Functions of the interosseous membrane
unites tibia and fibula, forms compartments for muscles, provides attachment for muscles.
What movements does the ankle joint allow?
plantarflexion (flexion, pointed toes) and dorsiflexion (extension)
What ligament is found medially at the ankle?
medial deltoid ligament
radiates from malleolus to talus, calcaneous and navicular
What ligament is found laterally as ankle?
Lateral ligaments- anterior and posterior talofibular and calcaneofibular
Which foot joint is ellipsoid?
metartarsophalangeal but limited add/abduction
What is the subtalar joint?
how is inversion and eversion produced?
ankle joint combined with movements of subtalar and midtalar joint motion
What is inversion? Useful why?
combined adduction and supination and plantarflexion at ankle
useful for uneven ground
What strengthens the intertarsal joints?
dorsal and plantar ligaments
What is the calcaneus navicular joint strengthened by?
spring ligament (plantar calcaneonavicular)
what tendons do you find on the plantar aspect of the foot?
tibialis posterior and anterior, peroneus longus
What joints are the tarsometatarsal joints?
What type of joints are the metatarsophalangeal joints? What stabilises them?
strong collateral ligaments, deep transverse metartarsal ligament, plantar ligaments and extensor tendon fibres
Name the 3 arches of the foot?
Medial and lateral longitudinal and transverse arch
What bones are involved and what stabilises the medial longitudinal arch?
calcaneus, talus, navicular, cuniforms and medial 3 metartarsals
What bones are involved and what stabilises the lateral longitudinal arch?
calcaneus, cuboid, lateral 2 metartarsals
long plantar ligament
What bones are involved and what stabilises the transverse arch?
tendons of the fibularis longus and tibialis posterior
What do the lubricals and quadratus plantae attach onto?
flexor digitorum longus
What muscle in the foot are there 2 names for?
quadratus plantae = flexor accessorius
Name the foot extensors
extensor digitorum longus and brevis, extensor hallucis longus
What intrinsic muscles move the big toe?
abductor hallucis, flexor hallucis brevis, adductor hallucis
What intrinsic muscles move the little toe?
abductor digiti minimi, flexor digiti minimi brevis
What is the axis for adduction/abduction of the toes?
the 2nd toe
What are the intrinsic foot muscles innervated by?
the tibial nerve via the medial and lateral plantar nerves