Leg and foot Flashcards
Bony points
shaft of tibia medial and lateral malleoli peroneal tubercle tuberosity of navicular head of talus cuneiform base of 5th metatarsal cuboid sustentaculum tali metatarsal heads
talocural joint (ankle)
- hinge joints (tibia, fibula and talus bones)
- dorsi and plantar flexion
- stabilized by medial and lateral ligaments
ligaments of the ankle
medial = deltoid ligament (medial malleolus - talus, calcaneous and navicular)
lateral - anterior and posterior talofibular lig and calcaneofibular
inferior (distal) tibiofibular joint
- fibrous joint - joined by fibrous tissue
- supported by interosseous membrane and the TF ligaments
Transverse tarsal joint
- “S” shaped line = talonavicular and calcaneocuboid joint
- joint provides extension
Tarsometatarsal joint
- gliding joints
- between metatarsal bases and tarsal bones
metatarsophalangeal joint
- ellipsoid joint
- metatarsal heads and proximal phalanx
interphalangeal joint
- hinge joint
- between phalanges
Gastrocnemius
A: flex the knee and planter flex the ankle
O: femoral condyles
I: calcaneus
N: tibial
Soleus
A: plantar flex the ankle
O: soleal line, prox/posterior tibia surface
I: calcaneus
N: tibial
peroneus longus
A: eversion and plantar flexion of the foot
O: top lateral surface of fibula
I: medial cuneiform and base of 1st metatarsal
N: superficial fibular
peroneus brevis
A: Eversion of the foot
O: surface of fibular shaft, descends into tendon with peroneus longus
I: tuberosity of 5th metatarsal
N: superficial fibular
tibialis anterior
A: invert the foot and dorsi flex the ankle
O: lateral tibial condyle, prox/lateral surface of the tibia
I: medial cuneiform and base of 1st metatarsal
N: deep fibular
extensor hallucis longus
A: extend the 1st toe, invert the foot and dorsi flex the ankle
O: mid/ anterior surface of fibular
I: distal phalanx of 1st toe
N: deep fibular
extensor digitorum longus
A: extend the 2nd – 5th toes, evert the foot and dorsi flex the ankle
O: lateral tibial condyle, prox/anterior shaft of tibia
I: middle and distal phalanges of 2nd – 5th toe
N: deep fibular