Starred Items L17 Flashcards
myotome:
lateral hip ER
medial hip IR
S1/L5
myotome: hip adduction
L3
myotome: hip abduction
L5
myotome: ankle inversion
L4
myotome: ankle eversion
S1
myotome: hip extension
S2
myotome: hip flexion
L2
myotome: knee extension
L3
myotome: knee flexion
S2
myotome: dorsiflexion
L4
myotome: plantar flexion
S1
myotome: toe extension
L5
myotome: toe flexion
S2
foot dermatomes from lateral to medial (top view)
S1, L5, L2
what attaches right above soleal line
popliteus
is lateral or medial malleolus more distal
lateral
where is the tibial plafond located
area of distal tibia that is not the medial malleolus
joint responsible for IR and ER of lower leg
proximal/distal tibiofibular joint
in closed chain screw home mechanism, knee locks by _______ rotating the _______ on the fixed ________ to allow knee extension
medially
femur
tibia
in open chain screw home mechanism knee locks by _______ rotating the _______ on the fixed ________ to allow knee extension
laterally
tibia
femur
in closed chain screw home mechanism knee unlocks by ______ rotating the ____ on the fixed ______ to allow knee flexion (popliteus contracts)
laterally
femur
tibia
in open chain screw home mechanism knee unlocks by ______ rotating the ____ on the fixed ______ to allow knee flexion (popliteus contracts)
medially
tibia
femur
does tibialis posterior go to toes
no
superficial (triceps surae) posterior lower leg muscles and what nerve
gastrocnemius
soleus
plantaris
Tibial nerve S1, S2
deep posterior lower leg muscles and what nerve
popliteus
flexor hallicis longus
flexor digitorum longus
tibialis posterior
Tibial nerve
gastrocnemius plantarflexes ankle joint when knee is _______ while soleus plantarflexes ankle joint when knee is _______
gastroc: extended
soleus: in all positions
distal attachment of flexor digitorum longus
distal phalynx
what muscle attaches to interosseous membrane, tibia, and fibula
tibialis posterior
what is the foot arch tendon
tibialis posterior
tibialis posterior can rupture by
aging
pregnancy
(full body weight on it)bi
lateral lower leg group and nerve
fibularis longus
fibularis brevis
superficial fibular nerve
what are the only two muscles enervated by the superficial fibular nerve
fibularis longus
fibularis brevis
when does fibularis brevis become a tendon
at the lateral malleolus
what muscles do lower leg eversion
fibularis longus
fibularis brevis
what does an avulsion indicate
tendon is stronger than the bone
(bone breaks bc tendon is pulling on it)
broken pinky toe causes
avulsion fracture at the base of the 5th metatarsal
jones fracture
stress fracture
fibularis brevis
ankle sprain
distal to proximal 5th metatarsal injuries
stress fracture
jones fracture
avulsion fracture
anterior leg muscle compartment and which nerve
tibialis anterior
extensor hallucis longus
extensor digitorum longus
fibularis tertius
deep fibular nerve
which fibularis muscle is not enervated by the superficial fibular nerve
tertius
if muscle runs under malleoli it….
plantar flex
if muscle runs above/superior malleoli it…..
dorsi flex
heel bone
calcaneus
first ray of the foot bones
what does the cuboid articulate with
metatarsal 4 and 5
what is the sustentaculum tali
where are the sesamoid bones in the foot
plantar side of big toe
forefoot bones
metatarsals, phalanges
midfoot bones
cuboid, navicular, cuneiforms
hindfoot bones
calcaneus, talus
cuboid pulley system
which actions occur at the talocrural joint
dorsiflexion and plantarflexion
how many ligament parts at the medial ankle and what ligament do they make up
4
deltoid ligament
lateral ankle ligaments
anterior talofibular ligament
posterior talofibular ligament
calcaneofibular ligament
most common lateral ankle ligament injury
anterior talofibular ligament
rolled ankle: another name, what ligaments and what action causes it
lateral ankle sprain
ATFL
calcaneofibular ligament?
inversion/plantarflexion
high ankle sprain involves…… & caused by
tibiofibular syndesmosis
lower leg is forced into dorsiflexion and eversion
ottawa ankle fracture: xray needed if tenderness in
lateral malleolus
medial malleolus
ottawa foot fracture: xray needed if tenderness in
base of 5th metatarsal
navicular
what is involved in a trimalleolar fracture
lateral malleolus
medial malleolus
plafond
subtalar joint: what articulates
calcaneus and talus
what action happens at subtalar joints
inversion and eversion
what are the two transverse tarsal joints and what are they also called
calcaneocuboid joint
talocalcaneonavicular joint
chopart joint
talocalcaneonavicular joint ligaments
plantar calcaneonavicular (spring ligament)
plantar calcaneocuboid (short plantar ligament)
long plantar ligament
lisfranc injury: what ligament is involved, what bones are involved, what area of the foot, what action causes
lisfranc ligament
cuneiform and 2nd metatarsal
midfoot
foot twisting
tarsal tunnel contents run posterior and inferior to which malleolus
medial malleolus
tarsal tunnel order and pneumonic
tom dick and very nervous harry (tibialis posterior tendon, flexor digitorum longus tendon, tibial artery, tibial vein, tibial nerve, flexor hallucis longus)
what muscles prevent ankle rolling
fibularis longus and brevis
does the fibularis tertius plantar flex or dorsiflex
dorsiflex
which of the fibularis muscles does not plantar flex: fibularis longus, fibularis tertius, fibularis brevis
fibularis tertius
which two muscles distally attach to the same two bones (???) coming from different directions
fibularis longus
tib anterior
tarsal tunnel issues happen in people with….
flat lowered arches
bunion technical term and what occurs
hallux valgus
big toe rotates out– is in adduction, reduces medial longitudinal arch
which ankle sprain would most likely injure the superior extensor retinaculum
high ankle sprain
which ankle sprain would most likely injure the inferior extensor retinaculum
lateral ankle sprain
what can be injured with a lateral ankle sprain
dynamic arch of the foot support
tibialis posterior
tibialis anterior
flexor hallucis longus
fibularis longus
intrinsic plantar muscles
calcaneal tendon
passive arch of the foot support
plantar aponeurosis (fascia)
short plantar ligament
long plantar ligament
plantar calcaneonavicular (spring) ligament
what form the sole “stirrup” and support the transverse arch area
tibialis posterior and fibularis longus
where does the plantar aponeurosis start
medial process of calcaneal tuberosity
extensor hood of the foot
intrinsic muscles of the dorsal side of the foot
only found within the foot region
EDB
EHB
which muscle may be involved if there is pain at the floor of the sinus tarsi
EDB?
what side is the saphenous vein on
medial side
superficial veins of the lower leg
great saphenous
small saphenous
dorsal venous
deep veins of the lower leg
anterior tibial
posterior tibial
plantar venous arch
where does the popliteal artery change names from the ATA to PTA
at the bifurcation at the soleal line
what is the parent structure of the fibular artery
posterior tibial artery
where is the dorsalis pedis pulse found
between first and second ray
which toe is the reference for toe movements
2nd
first layer of the foot muscles
abductor hallucis
abductor digiti minimi
flexor digitorum brevis
what splits and allows flexor digitorum longus to reach the distal phalynx of the toe
flexor digitorum brevis splits
what’s the parent structure of the plantar nerve
tibial nerve
muscles in the second layer of the foot
quadratus plantae
lumbrical muscles
what originates off flexor digitorum longus of the foot
lumbricals
what enervates the medial lumbrical of the foot and what enervates the lateral three lumbricals
medial: medial plantar nerve (L5-S1)
lateral: lateral plantar nerve (S1-S3)
what tendons are the two sesamoids of the great toe located in
flexor hallucis brevis
muscles in the third layer of the foot
adductor hallucis
flexor hallucis brevis
flexor digiti minimi brevis
muscles in the fourth layer of the foot
plantar interossei (1-3)
dorsal interossei (1-4)
is size or presence of a bone spur indicative of pain or symptoms
no
what tendon do the posterior lower leg muscles (triceps surae) attach to
achilles tendon
what actions do the deep posterior lower leg muscles do
flex the digits, great toe, and invert the ankle
what actions does the lateral lower leg do
evert at the ankle
what does the sciatic nerve split into
common fibular nerve and tibial nerve
whats the parent structure of the common fibular nerve
sciatic nerve
whats the parent structure of the tibial nerve
sciatic nerve
what does the common fibular nerve split into
superficial and deep
what does the superficial fibular nerve enervate
fibularis longus and brevis
what does the deep fibular nerve enervate
all of the anterior compartment and dorsum of foot
what does the tibial nerve split into
medial and lateral plantar nerves