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19 Cards in this Set
- Front
- Back
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Talocrural joint type?
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Hinge joint
- Also called a mortise joint due to gliding motion |
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Upper ankle joint is called?
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Talocrural joint
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Articular surfaces in general?
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Distal ends of tibia & fibula
Proximal end of talus |
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Articular surfaces in detail?
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Malleolar, tibial & fibular MORTISE
roll on trochlear of TALUS |
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Which of tibial & fibular joints surface extend most distally?
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Fibular
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Joint capsule is attached to?
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To margins of cartilage layer of articular surfaces
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Where is the synovial folds?
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On both anterior & posterior sides
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Ligaments of Talocrural joint ?
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- Medial / deltoid ligament
- Anterior talofibular ligament - Posterior talofibular ligament - Calcaneofibular ligament - Ant&post tibiofibular ligament |
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Which is the largest ligament of Talocrural joint ?
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Deltoid ligament
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Parts of deltoid ligament?
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1. Tibionavicular
2. Tibiocalcaneal 3. Ant&post tibiotalar |
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Tibionavicular ligament of deltoid ligament; OI?
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O: Tibia (most anterior of med.malleous)
I: Navicular bone |
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Tibiocalcaneal ligament of deltoid ligament; OI?
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O: Tibia
I: Sustenaculum tali: A process of talus superior & medially |
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Function of anterior talofibular ligament?
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Connect lateral melleolus to neck of talus
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Posterior talofibular ligament; OI?
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O: Lateral melleolar fossa
I: 2 posterior talar processes |
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Calcanofibular ligament; where?
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Lateral side - calcaneus to fibular
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Anterior&posterior tibiofibular ligament; function?
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Work like collaterals:
- Fix the malleolar mortise |
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Movements of Talocrural joint ?
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- Plantar flexion
- Dorsiflexion - Pronation - Supination |
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Axis of Talocrural joint ?
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Transverse
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How may mortise have more free play?
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During plantar flexion, due to talar trochlear narrow posteriorly
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