ANATOMY
22
15.
Muscle of the lower leg which can initiate dorsiflexion and
inversion p640NM
a.
tibialis posterior
F - Plantar flex and invert
b.
tibialis anterior
T
c.
peroneus tertius
F - Dorsiflex + evert
d.
peroneus longus
F - Everts and weakly plantar flexes
e.
peroneus brevis
F - Everts and weakly plantar flexes
16.
Tibialis anterior p640NM
a.
dorsiflexes and everts the foot
F - DF and invert
b.
arises from the upper two thirds of the fibula
F - lateral condyle + superior
½
of lateral surface of tib and interosseous
membrane
c.
inserts into the medial cuneiform
T - and 1
st
MT
d.
shares it’s site of insertion with peroneus tertius
F - It goes to dorsum of base of 5
th
e.
is supplied by L5, S1
F - L4, L5 (deep fibular nerve)
17.
Regarding foot interossei p596 Moore, p658NM
a.
Palmer/sole side have 2 heads
F - Dorsal are bipennate (DAB ie they abduct andBipennate)
b.
Axis is 3
rd
metatarsal
F - 2
nd
toe (Lasts p148)
c.
When act together flex MTP and extend IP
F - Lasts says YES. Moore’s says No: Flex MTP and Add/Abd
d.
Supplied by medial planter nerve
F -by lateral plantar nerve
18.
Which is true of the layers of the foot? Lasts 197
a.
the plantar aponeurosis can be regarded as the 5
th
layer
F - aponeurosis is superficial to 1
st
layer
b.
the 2
nd
layer comprises the long tendons and the lumbricals T - p198 Lasts
c.
neurovascular bundle lies between layer 1 and 2
T – between 1 and 2, and 3 and 4 pg 596 Moore
d.
First layer contains AbH, FDB and AbDM
T
e.
Third layer contains plantar and dorsal interossei
F – 4
th
layer
f.
Long tendons and their connections are in second layer
T - p199 lasts
g.
Flexor digitorum brevis is in second layer
F - 1
st
layer
h.
part of the transverse arch is not in the 3
rd
layer
F ???
i.
flexor hallucis brevis is not in the third layer
F
j.
adductor hallucis is not in the third layer
F
k.
flexor digiti minimi brevis is not in the third layer
F
l.
peroneus longus is not in the third layer
T - it is part of the 4
th
m.
long flexor tendons lie in the 2
nd
layer
T
n.
plantar aponeurosis is in the 4
th
layer
F - Not a layer and is the superficiall compartment
o.
it consists of three layers
F - four
Note:
Aponeurosis
1
st
– 3 muscles FAb – FDB, AbH, AbDM
Neurovascular bundle
2
nd
– 2 musc 2 tend – Quad plant, lumbricles
3
rd
– 3 musc 2 lig FAF – FHB AdH FDMB
Neurovascular bundle
4
th
– 1 musc 1 lig 3 tend FIT – Fib long, tib ant, tib post, Interossei