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Anat1 - Knee & Leg
(Week 10)
| Question | Answer |
|---|---|
| The _______ and _______ form the skeleton of the leg. | tibia, fibula |
| The tibia and fibula are connected to each other by the _______ _______. | interosseous membrane |
| The _______ articulates with the femur proximally. | tibia |
| The tibia and fibula articulate with the _______ distally. | talus |
| The tibia and fibula articulate with each other via the superior and inferior _______ joints. | tibiofibular |
| The _______ receives the weight of the body from the femur and transits it to the foot. | tibia |
| The _______ is the second largest and strongest bone in the body. | tibia |
| The tibia is located _______ to the fibula. | medially |
| The _______ does not bear much weight, but has muscular attachments. | fibula |
| The skeleton of the foot includes the _______, _______, and _______. | tarsus, metatarsus, phalanges |
| Thee sole extensor of the knee is the _______ _______. | quadriceps femoris |
| The _______ muscles flex the knee and are antagonists to the quadriceps femoris. | hamstring |
| The joints of the knee are the ________ joint and the _______ joint. | femoropatellar, tibiofemoral |
| The angle formed by a line drawn from the ASIS to the central patella and a second line drawn from the central patella to the tibial tubercle is called the: | Q angle |
| The two extracapsular ligaments of the knee are: | fibular collateral (AKA lateral collateral), tibial collateral (AKA medial collateral) |
| The two intracapsular ligaments of the knee are: | anterior cruciate, posterior cruciate |
| The _______ are crescent shaped fibrocartilage wedges that add joint stability. | menisci |
| _______ are flattened fibrous sacs lined with synovial fluid, found where ligaments, bones, muscles, tendons, or skin rub together. | Bursae |
| Knee close pack position is: | full extension |
| Knee open pack position is: | 10 degrees of flexion |
| The three compartments of the leg are: | anterior, lateral, posterior |
| Tibialis Anterior O.I.A. | O: lateral condyle of tibia and upper tibial shaft I: via tendon into inf surface of med cuneiform and 1st metatarsal A: PM dorsiflexion, inversion of foot |
| Extensor Digitorum Longus O.I.A. | O: lateral tibial condyle, interosseous membrane, fibula {prox 3/4} I: via tendon to middle and distal phalanges of 2-5 toes A: PM toe ext, dorsiflex of foot, syn of tibialis ant and EHL |
| Extensor Hallucis Longus O.I.A. | O: middle of ant med fibular shaft I: via tendon distal phalanx great toe A: ext great toe, dorsiflex of foot, syn of tibialis ant and EDL |
| Fibularis (Peroneus) Tertius O.I.A. | O: dist ant fibula & interosseous membrane I: dorsum of 5th metatarsal A: eversion and dorsiflex of foot |
| Fibularis (Peroneus) Longus O.I.A. | O: head & upper lateral fibula I: via long tendon behind lat malleolus, under base of 5th met to plantar surface 1st met & 1st (med) cuneiform A: plantar flex & evert foot |
| Fibularis (Peroneus) Brevis O.I.A. | O: distal {2/3} lat fib I: via tendon behind lat malleolus to proximal 5th met A: plantar flex and evert foot |
| Gastrocnemius O.I.A. | O: via two head from med & lat fem condyles I: posterior calcaneus via common tendon (triceps surae) A: knee flex, foot plantar flexion |
| Soleus O.I.A. | O: posterior upper tibia, fibula and tendinous arch between I: posterior calcaneus via common tendon (triceps surae) A: plantar flexion of foot, important postural support muscle |
| Popleteus O.I.A. | O: lateral condyle of femur I: proximal tibia A: flexes leg & med rots leg to unlock extended knee (lock home mechanism) |
| Tibialis Posterior O.I.A. | O: superior tibia, fibula, and interosseous membrane I: via tarsal tunnel to most of the bones of the foot, plantar surface of all cuneforms, cuboid, base of metatarsals 2-4, sustentaculum tali A: PM of foot inversion, foot plant flex, stabilized med ar |
| Flexor Digitorum Longus O.I.A. | O: posterior mid surface of tibia I: via tarsal tunnel to distal phalanx toes 2-5 A: plantar flex toes 2-5, gripping objects w/ toes |
| Flexor Hallucis Longus O.I.A. | O: post mid/dist fibula & interosseous membrane I: via tarsal tunnel to distal phalanx of great toe A: plantar flex and inversion - push off "toe off" during walking |
| The actions of the posterior compartment of the thigh muscles primarily are: | leg flexion, thigh extension |
| The action of the anterior compartment of the thigh muscles primarily is: | leg extension |
| The action of the medial compartment of the thigh muscles primarily is: | thigh adduction |
| The actions of the lateral compartment of the leg muscles primarily are: | plantar flexion and eversion of foot |
| The actions of the posterior compartment of the leg muscles primarily are: | plantar flexion of foot, flexion of toes |
| The actions of the anterior compartment of the leg muscles primarily are: | dorsiflexion of foot, extension of toes |
Created by:
sdouglass
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