Lecture 8.2 Flashcards
The ankle joint is a modified…
Ball and socket joint
The body of the taus is wider ______
anteriorly
The position of max stability of the ankle synovial hinge joint is _____ flexion
dorsi
The ___ colateral ligament at the ankle provides most of the support (continuous with mutiple bones - 4 in total)
medial colateral
tibionavicular
tibiocalcaneal
posterior tibiotalar
anterior tibiotalar (deep)
On the lateral side the colateral ligaments are discrete bands - which one is most commonly stretched in a strain?
anterior talofibular
it has horizontal orientation
Dorsiflexion is assisted by which muscles?
Tibialis anterior
Flexor digitorum longus
Flexor hallicus longus
Plantarflexion is performed by which muscles?
Gastrocnemius
Soleus
Plantaris
True or False
Plantar flexion is greater than Dorsi flexion
true
When standing up, the compressive forces on the foot joint equals ___ that of your normal body weight
twice
The _____ branches from the tibial and fibular ant and post. arteries supply the ankle
Malleolar
the subtalar joint is separated by ____ ____
sinus tarsi
______ joint allows gliding for pronation/supination in the foot
Calcaneocuboid
The ______ and _____ joints are where inversion and eversion occur
Subtalar and TCN
The what does the spring ligament support?
apex of medial longitudinal arch
INterosseous talocalcaneal ligament allows and limits _____/_______
inversion/eversion
The long plantar ligament forms a tunnel under which what passes?
peroneus longus
The foot arch is between 3 weightbearing pointss:
Calcaneal tuberosity
heads of MTs 1 & 5
Foot arch:
__ longitudinal arches
__ transverse arch
Poor bony stability:(________ support needed for static activity)
(______ support required for dynamic activity)
Foot arch:
2 longitudinal arches
1 transverse arch
Poor bony stability:(ligamentous support needed for static activity)
(muscular support required for dynamic activity)
What are the medial longitudinal foot arch supports?
plantar aponeurosis
spring ligament
TA, TP
FHL
what are the lateral longitudinal foot arch supports?
plantar aponeurosis
long and short plantar lig.
fibularis longus
What are the transverse foot arch supports?
fibularis longus
tibialis anterior
tibialis posterior
