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115 Cards in this Set

  • Front
  • Back
What shape is the foot?
Dome Shape
How many bones are in the foot?
26
What are the 3 divided sections of the foot?
phalanges, metatarsals, and tarsals
What do the phalanges consist of?
1st, 2nd, 3rd, 4th, and 5th toe
What do the metatarsals consist of?
1-5 long bones
3 sections: middle, distal (head) and proximinal (base)
What do the tarsals consist of?
1,2,3 cuneiforms
cuboid-lateral side
navicular-medial side
How many joints are in the 1st toe (big toe)?
2
Name 5 bony landmarks in the foot
-Sesamoid bones
-Tuberosity of the Navicular
-Tuberosity of the 5th metatarsal
-Tuberosity of the calcaneous
-Tuberosity of the Trochlea
What are sesamoid bones?
Located under the head metatarsal, flooting, absorb shock
What is the trochlea?
The top articulating surface where leg bones attach to the ankle. where joint forms. tibia and talus
Name the 3 arches of the Foot
1. Anterior/Metatarsal Arch
2. Lateral Arch
3. Medial/Longitudinal Arch
Anterior/Metatarsal Arch
-Curved becuase of cuneiforms
-wide on top, narrow on bottom
-dancers break down
-gives the foot its structure
Lateral Arch
-goes from 4th and 5th metatarsal to heal
-flexible becuase no ligaments
-very stable
Medial/Longitudinal Arch
-heal
-ankle
-talas
-1st 2nd and 3rd metatarsals
-other half of foot medial side
What is plantar fasciaitis?
overuse injury to plantar fascia, pain in the arch
what is plantar fascia made of?
connective tissue
where is the plantar fascia and why is it important?
-bottom of foot
-protection
-connects dome like structure
-helps support
-absorbs shock
what are the 3 feet types?
a. Normal
b. Pes Planus "flat feet"
c. Pes Cavus
Pes Cavus
Structure of the top of foot, not arch, bones sit higher, very mobel, more range of motion
Distribute _______ evenly through the foot.
weight
what are the three main stages of the walking gate?
-heal strike
-mid-support
-take off
What happens in the heal strike stage of the walking gate?
-The lateral side of the calcaneous hits the floor
-tibialis anterior contracts(concentric and eccentric control rate of decent
What happens in the mid-support stage?
-shift to medial side
-pronate to medial
What happens in the take off stage?
-take off big toe bc most stable (Flexor hallus longus)
-slight supination
Any _______ from the Walking gate with cause problems
deviation
interosseous membrane
-connective tissue
-keeps tibia and fibula from coming apart
Fibula
-Lower leg bone
-lateral side
-little
what does the fibula articulate with?
tibia, not femur
how much leg weight does the fibula carry?
less than 10%
what is the fibula there for?
stability
What are the two main ligaments of the foot?
-Medial Collateral/Deltoid
-Lateral Collateral
What are the three Medial Collateral ligaments?
1. Tibiocalcaneal
2.Tibionavicular
3.Posterior Tibiotalar
What are the three Lateral Collateral Ligaments?
1.Anterior talofibular
2.Posterior talofibular
3.Calcaneofibular
what is the most commonly injured ligament in dacne?
anterior talofibular ligament
ligaments are...
strong on inside, weak on outside
trochlea
surface of the talas, narrow section=pronation when in releve
spring ligament
-Plantar calcaneonavicular ligament
-medial side
-yellow
-sling under talus
-supports bodys weight, push off
inversion
supination and adduction
eversion
pronation and abduction
if you can follow the muscle you can _________ the movement
determine
which direction is the subtalar axis?
diagonally through the foot; head of talus down and back through back end of heel (calcaneous)
what is the action of the subtalar axis?
pronation and supination
which plane is the mediolateral axis?
saggital plane
what actions are taken plane in the mediolateral axis?
flexion and extension
dorsi and plantar flexion
what are the two axis' in the foot?
subtalar and mediolateral axis
action of the toes
flexion, extension, hyperextension
action of the tarsus
pronation and supination
action of the ankle
plantar flexion and dorsiflexion
what effect us as dancers?
-length of bones:effiniency of propulsive mechanism

-width:balance

-ligament:mobility and stability
Tibialis Anterior Origin
lateral condyle and upper 2/3 of the lateral surface of the tibia
Tibialis Anterior Insertion
medial surface of the 1st cuneiform and 1st metatarsal
tibialia anterior action
supination and dorsiflexion
Extensor Digitorum Longus Origin
anterior surface of upper 2/3 of fibula and interosseous membrance
Extensor digitorum longus insertion
dorsal surface of phalanges of toes 2-5
Extensor digitorium action
extension
pronation
dorsiflexion
Tibialis posterior origin
posterior surface of the upper 2/3 tibia, fibula and interosseous membrane
tibialis posterior insertion
navicular tuberosity, cuboid and all three cuneiforms on plantar surface
tibilais posterior action
supination, plantar flexion
flexor digitorum longus origin
middle 1/3 posterior surface of the tibia
flexor digitorum longus insertion
-distal phalanx of toes 2-5
-plantar surface
flexor digitorum longus action
flexion, supination, plantar flexion
flexor hallucis longus origin
middle 2/3 of the posterior surface of the fibula
flexor hallucis longus insertion
base of the distal phalanx of the big toe
flexor hallucis longus action
flexion, slight supination, plantar flexion
Plantaris origin
posterior surface of femur above the lateral condyle
plantaris insertion
tuberosity of the calcaneoud vis achilles tendon
plantaris action
plantar flexion, knee flexion, foot inversion
soleus origin
posterior surface of upper 1/3 of fibula and middle third of tibia
soleus insertion
posterior surface of the calcaneous via achilles tendon
soleus action
ankle plantar flexion
gastrocnemius origin
posterior aspect of medial and lateral condyles of the femur
gastrocnemius insertion
posterior surface of the calcaneous vis achilles tendon
gastorcnemius action
plantar flexion, knee flexion
peroneus brevis origin
lower 2/3 of fibula
peroneus brevis insertion
lateral tubercle of 5th metatarsal
peroneus brevis action
pronation, plantar flexion
Peroneus longus origin
lateral upper 2/3 of fibula
peroneus longus insertion
plantar surface of 1st metatarsal and the medial cuneigorm
peroneus longus action
pronation, plantar flexion
extensor Hallucis longus origin
midanterior of fibula and interosseous membrane
extensor hallucis longus insertion
dorsal surface, base of distal phalanx of big toe
extensor hallucis longus action
extension, slight supination, dorsiflexion
lumbrical origin
tendons of the flexor digitorum longus
lunbrical insertion
medial side, dorsal hood on proximal phalanz of 2 3 4 and 5 toes
lumbrical action
flexion, extension
tom
tibialis anterior
dick
extensor digitorium longus
harry
extensor hallucis longus
origin
closest to the middle of the body
insertion
distal end
peroneus tertius origin
distal 1/3 of anteromedial surface of fibula and surface of interosseous membrane
peroneus tertius insertion
dorsal surface, base of 5 metatarsal
peroneus tertius action
dorsiflexion and pronation
morton short/long toe
-2nd metatarsal is shorter thatn 1st
-stress on head of 2nd metatarsal
-supination
-shirt in ideal weight
tapered foot
-big to small
-not stable
-difficult to pointe
-supinate in releve
-narow and flexible
chopped foot
-3 toes are same length
-easy to balance
-wider base
-great for dance!
3 different feet shapes
chopped
tapered
morton long/short toe
pes cavus foot
-high arch
-not good shock absorber
-appears short
-dancer notch:overuse injury
-achilles is stretched for larger plea, stretches ligament and joint capsule
-calcaneous slides under, heel tilted under
-tocklea width affects range of dorsiflexion, thicker
hallus valgus
-misalignment of 1st toe, 2nd phalanges angle off to lateral side
-less efficiency for push off
-pronates
-too narrow shoes when bones ossify
-girls in pointe too early
bunions
-inflamation of bursa sac
-overtime will calcify
-loss of mobility, painful
two ways to determine alignment
bony landmarks and helbings disease
bony landmarks
1. medial side of head of 1st metatarsal
2. tuberosity of navicular
3. medial aspect of calcaneous
helbings disease
posterior veiw, achilles tendon
1.pronation
2. supination
3.ideal alighnment
fallen arch
tuberosity of navicular displaces medially and falls down
what if the spring ligament is worn?
the navicular falls
os trigonum
behind talus, restricts releve, bone breaks down and fuses to calcaneous
exotosis
protrusion of bone,, bone spur, painful
achilles tendon
tightness, most common restriction for plea, dorsiflexin, short more push off
tibial torsion
bowing of the tibis, knees face inward,more weight on medial side of foot, pronat bc of knees
releve
-unique for dancers,
-sickle:fewer bones in lateral arch, more stability , fewers joints to balance, balance over 2nd toe
shin spllints
-lower leg pain
-muscle tearing
-overuse
-inflammed periosteum
4 reasons dancers get shin splints
1.improper landing:heals down
2.dancning on hard surfaces:cement
3.constintly carrying weight too far forward or back
4. spending too much time in pronation:supinator contract so much to hold pronators will cause tears
achilles tendonitis
pain in forcibleplantar flexion (releve) sway back, should constintly stretched when dancing
how do you stretch the gastrochnemius?
dorsiflex ankle with knee straight
how do you stetch the soleus?
dorsiflex with knee bent