Knee

Question 1

How many articulations does the knee joint have?

Answer 1

3

Question 2

What do the articulations of the knee joint join?

Answer 2

2 join femur and tibia

1 joins femur and patella

Question 3

Which muscles control flexion of the knee?

Answer 3

Semimembranous
Semitendinous
Biceps femoris
Gastrocnemius

Question 4

Which muscles control extension of the knee?

Answer 4

Quadriceps femoris

Question 5

When can medial and lateral rotation of the knee occur?

Answer 5

When it is flexed to 90 degrees

Question 6

Which muscles control medial rotation?

Answer 6

Biceps femoris
Semimembranous
Semitendinous
Gracilis

Question 7

Which muscles control lateral rotation of the knee?

Answer 7

Biceps femoris

Question 8

Name the ligaments of the knee that help to stabilise it

Answer 8

Iliotibial tract
Tibial ligament 
Fibular ligament
ACL
PCL

Question 9

What is the function of menisci?

Answer 9

Shock absorbers

Question 10

Where is the medial meniscus attached peripherally?

Answer 10

Tibial collateral ligament

Question 11

What is the clinical significance of the anatomy of the medial meniscus?

Answer 11

Easily teared

Question 12

Where are both menisci anchored anteriorly and posteriorly?

Answer 12

Tibial intercondylar area

Question 13

Where do both the ACL and PCL attach?

Answer 13

Between tibia and femur

Question 14

Describe the path of the ACL

Answer 14

Passes superiorly, laterally and posteriorly to attach to the lateral femoral condyle

Question 15

What are the functions of the ACL?

Answer 15

Prevents anterior displacement of the tibia on the femur

Prevents knee hyperextension

Question 16

Describe the path of the PCL

Answer 16

Passes superiorly and anteriorly to attach to the medial femoral condyle

Question 17

What are the functions of the PCL?

Answer 17

Prevents posterior displacement of tibia on femur

Prevents hyperflexion of joint