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Important terms Cruciate: descriptive terms meaning “to form a cross” or “shaped like a cross” Collateral: descriptive term meaning “secondary” or “side branch” or even “small branch” Meniscus: cartilage (more specifically fibrocartilage) that helps reduce friction between some joints. Very tough material
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Knee anatomy All images show anterior view Important terms
Cruciate: descriptive terms meaning to form a cross or shaped like
a cross Collateral: descriptive term meaning secondary or side
branch or even small branch Meniscus: cartilage (more specifically
fibrocartilage) that helps reduce friction between some joints.Very
tough material Four Major Ligaments of the Knee
Lateral collateral ligament Medial collateral ligament Anterior
cruciate ligament Posterior curciate ligament 1 patella bone 2
femur bone 3 patellar ligament (cut) 4 lateral collateral ligament
5 Medial collateral ligament 6 medial meniscus 7 lateral meniscus
Not shown: patellar tendon found between the patella and muscle
(quadriceps) that cover the anterior side of the femur. 3 patellar
ligament (cut)- attaches patella to the tuberosity of the
tibia
4 lateral collateral ligament /connects lateral femoral condyle to
the head of the fibula 5 Medial collateral ligament connects medial
femoral condyle to medial condyle of the tibia 1 fibula bone 2
femur bone 3 tibia bone 4lateral collateral ligament 5 medial
collateral ligament 6 medial meniscus 7 lateral meniscus 1 fibula
bone 2 femur bone 3 tibia bone 4posterior cruciate ligament 5
anterior cruciate ligament Physiology Why so long to recover after
a knee injury?
The key to injury recovery is tissue repair.A torn ACL, or torn
meniscus (better known as torn cartilage), takes a long time to
recover because ligaments and cartilage have a very low blood
supply.Low blood supply means low metabolism (low amounts of
oxygen, sugar, etc.) and therefore take a long time to
repair.Instead of waiting for an ALC to repair itself, most people
resort to surgery. Torn ACL Draw a knee joint!
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