knee joint Flashcards
where is the patella-femoral joint
where the patella meets the femur
where is the tibio-femoral joint
where the tibia meets the femur
where is the superior tibio-fibular joint
where the tibia and fibula meet, superiorly
is the base of the patella, superior or inferior to the apex
the base is superior
the articular surface of the patelle meets up with the ______ side of the ______
anterior, femur
what is the purpose of the 2 shallow facets/ dips on the posterior side of the patella
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line up with the femoral condyles
what is the name of the gap in this image
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intercondylar notch
the inferior surface of the femoral condyles articulates with what surface
the medial and later tibial condyles
the distal end of the femur is _____ in shape and rocks on the _____ ______ ______
round, flat tibia plateau
true or false:
the flat tibia plateau has a raised bump called the intercondylar area
true
the intercondylar area is an attachment point for
- 3.
- ACL
- PCL
- Mensici
- a tear in meniscus of the red zone has a _____ chance of healing
- a tear in meniscus of the white zone has a ______ chance of healing
- good
- low
the meniscus of the knee helps with _________ and ______ by having an increased surface area/ extra layer of protection
compression, sheer
in patellar translation in knee flexion and extension, the patella moves _____ with knee flexion and, ______ with knee extension
inferiorly, superiorly
identify the labeled ligament, where does it attach?
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LCL - lateral collateral ligament
head of fibula, lateral epicondyle of femur
identify the ligament, where does it attach?
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medial collateral ligament (MCL)
medial epicondyle of femur, medial side of tibia
identify the difference between the lateral and medial menisci
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lateral menisci
- posterior, anterior horn
- shorter
medial mensci
- posterior, anterior horn
- longer
identify the ligament, where does it attach?
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anterior cruciate ligament (ACL), anterior intercondylar area, wraps posteriorally to the lateral femoral condyle
identify the ligament, where does it attach?
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posterior cruciate ligament (PCL)
posterior intercondylar area, medial femoral condyle
what movement does the ACL limit?
- anterior translation of the tibia relative to the femur
- excessive external rotation of the knee
what movement does the PCL limit?
- posterior translation of the tibia relative to the femur
- limits internal roation of the knee
- hyperextension of the knee
what position is this? which ligament limits this position?
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varus, LCL
what position is this? which ligament limits this position?
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valgus, MCL
in varus, the medial side of the knee is _____ and the lateral side of the knee is _____
compressed, opened
in valgus, the medial side of the knee is _____ and the lateral side of the knee is _____
opened, compressed