Activity 6: The Knee Joint

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1

What is the largest and most complex joint in the body?

Knee joint

2

The knee joint consists of which 3 bones?

1. Femur

2. Patella

3. Tibia

3

The knee joint allows what 3 movement types?

1. Extension

2. Flexion

3. Some rotation

4

What are 2 important joints that make up the knee?

1. Tibiofemoral joint

2. Femoropatellar joint

5

The tibiofemoral joint is what type of joint?

Bicondyloid joint

6

The tibiofemoral joint occurs between what features of the femur and the tibia?

Occurs between the femoral condyles and the menisci of the tibia

7

The tibiofemoral joint is functionally what structural type of synovial joint?

Hinge joint

8

The menisci of the tibia secures which specific joint of the knee?

Tibiofemoral joint

9

Which type of movement (limited) occurs when the knee is partly flexed?

Some rotation

10

During extension of the knee, the menisci and ligaments counteract which two types of movements?

1. Rotation

2. Side-to-side

11

The femoropatellar joint is positioned how, directionally?

Anteriorly

12

How is the knee unique in regard to an articular capsule?

It is only partly enclosed by an articular capsule.

13

Anteriorly, where the articular capsule is absent, what are the 3 broad ligaments?

1. Patellar ligament

2. Medial patellar retinacula

3. Lateral patellar retinacula

14

What 4 extracapsular ligaments are important in reinforcing the knee?

1. Fibular collateral ligament or lateral collateral ligament (LCL)

2. Tibial collateral ligament or medial collateral ligament (MCL)

3. Oblique popliteal ligament

4. Arcuate popliteal ligament

15

The knees have a built-in device that does what to the knee?

Locks the knee

16

Which type of muscles "unlocks" the built-in device that locks the knee?"

Popliteal muscles

17

What are the 2 intracapsular ligaments that cross in the notch between the femoral condyles?

1. Anterior cruciate ligament (ACL)

2. Posterior cruciate ligament (PCL)

18

The anterior and posterior cruciate ligaments help to prevent which type of displacement and which 2 flexion disorders to the joint?

Helps to prevent anterior-posterior displacement and overflexion and hyperextension of the joint.

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