fibularis tertius origin and insertion {Ans: O: distal fibula I: metatarsal 5}locking & unlocking of knee 1. when standing, knee is? 2. when does locking occur? 3. what is occurring during locking? (3) 4. what muscles lock the knee {Ans: 1. locked 2. last 30 degrees of extension 3. ligaments tightened, femoral condyles in contact with tibia plateus, joint surface larger 4. vastus medialis, gluteus maximus, tensor fascia lata}flexor hallucis longus origin- insertion- {Ans: origin- inferior 2/3s posterior tibia, 1/3 inferior interosseus membrane insertion- distal phalanx of hallux}flexor digitorum longus origin- insertion- {Ans: origin- medial posterior surface of tibia insertion- distal phalanges toes 2-5}calcaneal tendon inserts? rupture- where is the weakest part and why? what is the test for complete Achilles rupture {Ans: middle of back of calcaneus middle 1/3 due to poor vascularity, thompsons test}extensor digitorum longus origin and insertion {Ans: O: Lateral Condyle of Tibia, anterior surface of Fibula I: middle/distal Phalanges 2-5}