Tib-Fib Ankle Joints Flashcards
Tib tuberosity if what kind of epiphysis?
traction
soleal line where? for? what kind of muscle?
posterior tibia; Soleus: slow twitch postural muscle
Why is soleus a postural muscle?
COG in front of ankle, need soleus to hold it back when upright
Tib-fib in a fracture situation, which goes?
Ring hypophyses, usually both
Fibula function
- Non-weight bearing
2. muscle attachments
what kind of joint if superior tib fib joint?
synovial
what kinda of joint if inferior tib fib joint?
Fibrous (syndesmosis)
purpose of syndesmosis joint in inferior tib fib joint?
prevent separation during weight bearing
syndesmosis forms?
malleolar mortise
March stress fracture on which toe?
2nd metatarsal
3 cuneiform are?
medial
intermediate
lateral cuneiform
talocrural joint is?
talus and inf. tib-fib
subtalar joint is?
talocalcaneal
midtarsal joints of talus are?
talocalcaneonavicular
calcaneocuboid
talocrural joint is what kind of joint?
synovial hinge
plantarflexion goes with which movement too?
inversion
dorsiflexion goes with which movement too?
eversion
2 important ligaments in posteriro inf ?tib-fib
- posterior tibiofibular ligament
2. inferior transverse ligament
ankle capsule attaches to body neck or head of talus?
neck
medial ligaments of ankle:
deltoid ligament: Tibio-calcaneal Tibio-navicular Ant Tibiotalar Post tibiotalar
what is the spring ligament?
plantar calcaneonavicular ligament
3 ligaments of lateral ankle
- Anterior Talofibular
- Calcanealfibular
- posterior talofibular
spring ligament does what?
reinforces and maintains head of talus
body of talus is concave or convex posteriorly?
concave
head of talus is concave or convex anteriorly?
convex
spring ligament spans which joint?
Talocalcaneonavicular joint
what is in the sinus tarsi?
interosseous talocalcaneal ligament
interosseous talocalcaneal ligament purpose?
bind calcaneus and talus firmly
vascular supply of sinus tarsi?
sparse because little muscle
purpose of subtalar joint?
inversion/eversion
purpose of calcanealcuboid joint?
pronation/supination
what are Lisfranc joints?
tarsometatarsal joints
metatarsophalangeal joints are what kind of synovial joints?
condylar
interphalangeal joints are what kind of synovial joints?
hinge
how many arches in foot?
2 longitudinal: medial/lateral
1 transverse
purpose of arch?
support and spring in locomotion
plantar aponeurosis between?
calcaneus and metatarsal heads
windlass mechanism?
toes dorsiflex and tighten arch and propel and help during toe-off/push off