muscles of the ankle and foot complex Flashcards
during gait does intrinsic or extrinsics support the medial arch
extrinscis
what are the 3 muscles that support the medial arch during gait
tib post
FDL
FHL
lateral stability during gait is provided by what muscles
fibularis longus and brevis
all mm of the ankle and foot act on how many joints
at least 2
what are the mm of the posteior compartment of the ankle and foot
gastroc and soleus
what muscles are the strongest PF when working together
gastroc and soleus
plantar flexion synergist past ___ to the ankle but weak ___ from PF
posterior
MA
what are the 3 synergist mm for PF
tib post
FDL
FHL
plantaris
what is the function of the tib post
subtalar and transverse tarsal supination and eccentric control of pronation and inversion of the foot
what 2 muscles does weak PF and supination and inversion of the foot
FDL and FHL
what muscles assist with toe flexion
quadratus plantae
what are the 2 mm of the lateral compartment
fibularis longus and brevis
what are the primary pronations at the subtalar joint and weak PF
fib long and brev
where does the fib long tendon. cross under
under foot to medial cuneiform and base of 1st MT
what muscles help transfer weight from lateral to medial foot
fib long and brev
the fib long and brev stabilize the __ ray against GRF
1st
fib brev and long facilitate ___ twist when hind foot is in supination
pronation
what arches do the fib long and brev help support
transverse and lateral longitudinal
the fib long and brev stabilize the __ after heel rise
forefoot
what is needed for the best mm action of fib long anf brev
retinacula
what 4 mm are in the anterior compartment
tib ant
EHL
EDL
fib tertius
all the mm of the anterior compartment pass under __ and can ___
extensor retinaculum and can DF
what is the key supination of subtalar and transverse talar joints
tib ant
what is the function for EHL
great toe ext and weak supinator
what is the function of EDL
toe ext and hind foot pronations
what 2 muscles from the anterior compartment do eccentric control of PF after heel strike and control pronation in loading
tib ant and EHL
what is the function of the foot intrinsic
stabilize toes and dynamic support of arches during gait
hallux mm support ___ and ____ MTP
sesamoids and 1st MTP
lumbricals and dorsal/plantar interossi prevent MTP ___
hyperextension
