Unit 5 - Lower Limb: Ligaments of the Knee Joint (Ex. IV)

Question 1

M and L sides (2)

Answer 1

M (tibial) collateral ligament (MCL)

L (fibular) collateral ligament (LCL)

Question 2

P side (2)

Answer 2

oblique popliteal ligament

arcuate popliteal ligament

Question 3

intrinsic ligaments (4)

Answer 3

anterior cruciate ligament (ACL)
posterior cruciate ligament (PCL)
transverse ligament of knee
posterior meniscofemoral ligament

Question 4

A side (5)

Answer 4

patellar ligament
M longitudinal patellar retinaculum
L longitudinal patellar retinaculum
M transverse patellar retinaculum
L transverse patellar retinaculum

Question 5

What are the extracapsular ligaments of the knee?

Answer 5

M (tibial) and L (fibular) collateral ligaments
oblique popliteal ligament
arcuate ligament

Question 6

What are the intracapsular ligaments of the knee?

Answer 6

A cruciate ligament

P cruciate ligament

Question 7

Why are the ACL and PCL “intracapsular?”

Answer 7

they are w/in the joint capsule

• *however - not w/in the synovial membrane capsule ==> extrasynovial**
  
  • synovial fluid is between the condyles and tibial plateau but not w/in the intercondylar eminence where the ACL and PCL attach

Question 8

What motions does the MCL resist?

Answer 8

valgus force

L tibial rotation

Question 9

What motions does the LCL resist?

Answer 9

varus force

limits excessive L tibial rotation

Question 10

Which ligament is more mobile?

Answer 10

LCL –> bc MCL is attached to M meniscus

Question 11

What motions does the ACL resist?

Answer 11

A translation of tibia on femur

hyperextension

Question 12

What motion does the PCL resist?

Answer 12

P translation of tibia on femur