The ankle Flashcards
ankle joint
synovial hinge joint
sagittal plane, plantar flexion and dorsi flexion, inversion and eversion
tarsal bones
calcaneous - heel of foot
talus - top bone at ankle joint articulates with tibia and fibula
navicular- bone located anterior to calcaneous
cuboid - long cuboid shape next to navicular
cuneiform - medial, middle, lateral
metatarsals & phalanges
metatarsals 1st(big toe),2nd,3rd,4th,5th
proximal phalanges - 1st 2nd 3rd 4th 5th
middle phalanges - 2nd 3rd 4th 5th (big toe doesnt have one)
Distal phalanges - 1st 2nd 3rd 4th 5th
muscles in lower leg
soleus
gastrocnemius
tibialis anterior
tibialis posterior
peroneus longus
peroneus brevis
muscles that flex and extend toes
extensor hallucis longus
extensor digitorum longus
Flexor hallucis longus
Flexor digitorum longus
ligaments (lateral)
ATFL lateral malleolus to talus
CFL - lateral malleolus to calcaneus(heel)
PTFL - lateral malleolus to posterior end of talus (more behind)
ligaments (medial)
make up deltoids
muscles that plantarflex the foot
GASTROC - medial and lateral condyles to posterior surface of calcaneus (tibial neve S1,S2)
SOLEUS - soleal line on tibia surface to posterior surface of the calcaneus (tibial nerve S1,S2)
TIBIALIS POST - lateral aspect of posterior tibia to medial cuneiform to tarsal bones (tibial nerve L4,L5)
FLEXOR DIGITORUM LONGUS - posterior surface of tibia to distal phalanx of lateral 4 toes (tibial nerve L5,S1,S2)
PERONEUS LONGUS - upper 2/3rds of lateral surface of fibula to cuneiform to base of first metatarsal (SPN, L5,S1)
PERONEUS BREVIS-lower 2/3rds to base of 5th metatarsal
Muscles that dorsiflex the foot
TIBIALIS ANTERIOR- lateral surface of tibia to medial cuneiform and base of 1st metatarsal (deep peroneal nerve L5,S1)
EXTENSOR DIGITORUM LONGUS - anterior surface of fibula down interosseous membrane to distal phalanx of lateral 4 toes (deep peroneal nerve L5,S1)
EXTENSOR HALLUCIS LONGUS-middle anterior surface of fibula down IM to distal phalanx of big toe (deep peroneal nerve (L5,S1)
Muscles that perform inversion
Tibialis anterior - lateral surface of tibia down IM to base of first metatarsal
Tibialis posterior - posterior surface of tibia down IM to medial cuneiform and most of the tarsal bones
Muscles that perform eversion
Peroneus longus - upper 2/3rds of fibula to base of 1st metatarsal (superficial peroneal nerve L5, S1)
peroneus brevis - lateral surface of fibula to base of 5th metatarsal (superficial peroneal nerve L5,S1)