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18 Cards in this Set
- Front
- Back
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What are the bones of the Thigh and Knee? |
Femur, Patella, Tibia, Fibula |
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Describe the Patella/Knee |
Second Largest joint of the body Situated between body's two longest lever arms Sustains very high force Very Susceptible to Injury Bones provide little stability |
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What Joints are involved with the patellar region |
Tibiofemoral, Patellofemoral, Proximal tibiofibular |
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What is the Anatomy of the Patella? |
Largest Sesamoid Bone Situated within Trochlear groove of Femur Moves to accommodate Flexion/Extension of knee |
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How does the Patella aid knee Extension? |
Producing anterior displacement of the quads tendon throughout the entire ROM |
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How does the Patella permit wider distribution of compressive stresses on the femur? |
Increasing arc of contact between the patellar tendon and femur |
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What happens when knee flexion increase? |
Reaction force going through knee increases -until 70 degrees of flexion increase is linear - >70 degrees force increase is exponential |
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What is the anatomy of the hamstrings? |
Semimembranosus Semitendinosus Biceps Femoris Abductors and Adductors |
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What is the main function of the hamstring |
Knee flexion |
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What is the anatomy of the quadriceps? |
Vastus medialis Vastus lateralis Vastus intermedius Rectus femoris (Only one that crosses hip join) |
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What is the function of the vastus muscles |
Knee Extension |
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What is the anatomy of the quadriceps tendon? |
Made of all the muscles of the quad Encases patella and continues on Beyond patella it is known as patellar tendon. |
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What is the anatomy of the knee ligaments |
Cruciates (ACL,PCL) Collaterals (MCL, LCL) |
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What is the function of the collaterals? |
Protect the knee from valgus/varus forces |
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What is the function of the cruciates? |
Help prevent anterior and posterior displacement. |
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Anatomy of the ACL |
Situated within joint Origin: anterior portion of intercondylar notch of tibia Runs superiorly and and posteriorly to the interanal aspect of the later femoral epicondyle Helps prevent anterior tibial translation |
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Anatomy of the PCL |
Situated within the Joint Origin: posterior aspect of intercondylar area of tibia Runs superiorly and anteriorly attaching to internal aspect of the medial femoral epicondyle Helps prevent posterior tibial translation |
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What is the anatomy of the menisci |
Two Semicircular fibrocartilaginous disks Aid in weight and stress distribution Outer 1/3 is vasuclar and heals well Inner 2/3 doesn't |
