Knee Joint - Exam 4

Question 1

knee joint type

Answer 1

synovial hinge joint

Question 2

knee joint function

Answer 2

flexion/extension with a small amount of rotation with flexion

Question 3

meniscus

Answer 3

lateral and medical portions
helps support unstable bone articulation
articular surface is uneven and incongruent
generally will not heal when torn - removed by surgery

Question 4

lateral collateral ligament (LCL)

Answer 4

lateral epicondyle of femur to fibula
does NOT attach to lateral meniscus

Question 5

medial collateral ligament (MCL)

Answer 5

medial epicondyle of femur to tibia
attaches to medial meniscus, gets torn with meniscus during contact sports

Question 6

anterior cruciate ligament (ACL)

Answer 6

prevents posterior rolling of femur
weaker than PCL

Question 7

anterior drawer test

Answer 7

ACL
pull anteriorly on tibia, should not move 6mm+

Question 8

posterior cruciate ligament (PCL)

Answer 8

prevents anterior rolling of femur
stronger than ACL

Question 9

posterior drawer test

Answer 9

PCL
push posteriorly on tibia, should not move 6mm+

Question 10

patellar/quadriceps tendon

Answer 10

anterior portion of knee
contains sesamoid patellar bone