Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
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
|