Knee Joint Flashcards Preview

Gross Anatomy 2 > Knee Joint > Flashcards

Flashcards in Knee Joint Deck (22):
1

Bones of the Knee Joint

3 Separate articulations

Femoropatellar

2x Femorotibial

 Modified hinge joint - Fibula does not articulate at the knee joint

2

Articular Surfaces in the Knee Joint

3

Capsule Attachments

Anteriorly

Fuses with quadriceps tendon, patella nad ligamentum patellae

4

Capsule Attachments

Posteriorly

Encloses intercondylar fossa of femur, and is oen posterior to the lateral condyle of the tibia for the popliteus muscle

5

Synovial Membrane Attachments

Medial and lateral alar folds cover the inner surface of fat pads on either side of the patellar ligament

6

Bursae around the Knee Joint

7

Ligaments at the Knee Joint

Extracapsular (3)

Oblique Popliteal

Arcuate Popliteal

Medial and Lateral Collateral

8

Ligaments at the Knee Joint

Intracapsular

Anterior and Posterior Cruciate

9

Popliteal Ligaments

Oblique Popliteal Ligament (Red)

Expansion of Semimembranosus tendon.

Reinforces posterior capsule

10

Popliteal Ligaments

Arcuate Ligament (Blue)

Thickening of capsule over popliteus

Strenghtens posterolateral joint capsule

11

Medial (Tibial) Collateral Ligament

 

Strong, flat thickening of capsule

Medial epicondyle of femur to the medial condyle and superior medial surface of the tibia

Deep fibres attach to medial meniscus

12

Lateral (Fibular) Collateral Ligament

Strong and cord-like

Lateral epicondyle of femur to lateral head of fibula

 

13

Cruciate Ligaments

Parts of these are taut in every joint position

Maintain contact between femoral and tibial articular surfaces when the knee is flexed

Wind around each other during medial rotation of the tibia

14

Anterior Cruciate Ligament

Attachments

Anterior intercondylar area of tibia to the medial side of the Lateral condyle of the femur

15

Anterior Cruciate Ligament

What band does what? 

Anteromedial band limits flexion

Posterolateral band limits extension

16

Posterior Cruciate Ligament

Attachments

Posterior intercondylar area of the tibia to the lateral side of the medial condyle of the femur

17

Posterior Cruciate Ligament

What band limits what?

Anterolateral band limits flexion

Posteromedial band limits extension

18

Menisci

What are they?

Wedges of fibrocartilage which deepen the articular surface and are important in shock absorption

19

Menisci

Medial Meniscus

C-shaped

Broad posteriorly

Firmly attached to TCL

20

Menisci

Lateral Meniscus

Circular

Freely moveable

Attachment for popliteus

21

Meniscal Attachments

22

Blood Supply to the Knee