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24 Cards in this Set
- Front
- Back
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_______ rotation can occur when the knee is slightly flexed.
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Medial & lateral
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The knee is considered a HINGE JOINT because ________.
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it allows medial & lateral rotation when flexed
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The popliteus muscle originages from ____ & inserts into ________.
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lat. condyle of femur (INSIDE joint); post. aspect of tibia (above soleal line)
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The popliteus allows for ______ rotation of leg when knee is FLEXED.
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MEDIAL
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The popliteus is considered to be the ____ of the knee because.
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KEY; unlocks fixed tibia from femur & flexion can occur
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The popliteus allows for ______ rotation of femur when knee is EXTENDED.
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LATERAL--this lateral rotation of femur unlocks the leg & flexion can occur.
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The _____ is the primary extensor of the knee joint.
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rectus femoris
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The lateral rotator of the knee is______.
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biceps femoris
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The medial rotators of the knee are _______, ______, & _______.
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semimembranosus, semitendinosus, & popliteus (when leg is flexed)
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Extension of the knee is limited by _______.
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ACL
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Flexion of the knee is limited by _____ & ______.
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PCL; calf of leg contacts thigh.
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The ______ ligaments limit medial & lateral rotation.
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MCL, LCL
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When the knee locks, less ______ is needed to keep the knee extended.
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muscular effort
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When the leg is fully extended, the femor rotates _____ on tibia, which ______.
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medially; tightens all the ligaments of knee & help keep it extended
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The line of center of grav. in knee is _____ to knee, which maintains extension.
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ANTERIOR
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The ______ of the femoral condyles is in contact w/ _____ in stabilizes knee.
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flat surface; tibia
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There are about ___ bursae arond the knee. Their purpose is to _________.
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12; reduce friction
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The ______ bursae is very large & is usually about 5cm above knee (but can be more).
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suprapatellar
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The suprapatellar bursa is actually ________, so its in communication w/knee joint.
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an upward extension of knee joint EXTENSION
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The ______ muscle attaches to the suprapatellar bursa. It pulls bursa up to ______.
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articularis genaris; keep it from being pinched during extension
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The _____ & ______ bursa permit skin to move freely over knee when moving.
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subcutaneus prepatellar & subcutaneus infrapatellar
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The ANSERINE BURSA separates pes anserinus from ________.
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joint capsule
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The ______ (in knee) is one of the most commonly inflames bursa in body.
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anserine bursa
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Bursa can become INFECTED. This is especially significant with ______.
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suprapatellar bursa b/c infection can spread to knee joint itself
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