Knee

Question 0

What is the largest sesamoid bone in the body?

Answer 0

Patella

Question 1

What is the main function of the patella?

Answer 1

⬆️ muscular efficiency of quads

Question 2

What is the difference between collateral and cruciate ligaments?

Answer 2

Collateral - run parallel on either side of a joint
- do not touch

Cruciate- cross one another

Question 3

Does the patella articulate with the tibia

Answer 3

NO

Articulates with the condyles of the femur

Question 4

What shape best describes the patella?

Answer 4

Triangular/flattened

Question 5

Does the patella lie inline with the knee joint in a standing position?

Answer 5

No lies 1cm above

Question 6

Which knee ligament attaches to the medial meniscus?

Answer 6

MCL

Question 7

How could you stress then posterior knee capsule?

Answer 7

Passive knee extension

Question 8

Name the 4 locations of the anterior bursa of the knee

Answer 8

• subcutaneous prepatellar bursa
• deep infra patellar bursa (btwn upper part or tibia & patellar lig’t)
• subcutaneous infra patellar bursa (lower part of tib tube & skin)
• supra patellar bursa (anterinferior part of femur & quads tendon)

Question 9

List the characteristics of the ligamentum patella

Answer 9

• flat band ~8cm long
• continuation of quad tendon
• thickened anterior portion of fibrous capsule

Question 10

List the 5 primary functions of menisci

Answer 10

1) absorb shock
2) ⬆️ congruency of condyles of femur W/tibial condyles
3) allows flex/rot or ext/rot @ same time
4) moves synovial fluid through knee
3) allows for ligament attachment

Question 11

What shape are the menisci?

Answer 11

Wedge shaped

Question 12

List the contents of the Popliteal Fossa

Answer 12

1) tibial nerve 2) sural nerve 3) common Peroneal nerve
4) communication sural
5) lateral cutaneous nerve of leg
6) popliteal vessels
7) termination of the small saphenous vein
8) femoral cutaneous nerve

Question 13

What is a Chiasm?

Answer 13

Point where cruciate ligaments intersect

Question 14

What type of joint is the knee?

Answer 14

Modified hinge joint
Biaxial
Diathroidal

Question 15

Posterior knee capsule is thickened by the _________

Answer 15

Oblique popliteal ligament

- expansion of semimembranous

Question 16

The medial knee capsule is an expansion of what 4 things?

Answer 16

Semimembranosus (posteriorly)

Sartorius
Gracilis
Semitendinosus

Question 17

What type of cartilage is the knee joint covered by?

Answer 17

Hyaline cartilage

Question 18

What is the purpose of the intracondylar eminence?

Answer 18

Act as a stabilizing influence on the femur, during extension but NOT flexion

Question 19

Which aspects of the knee capsule is poorly developed?

Answer 19

Anterior capsule

Question 20

What are the articular surfaces of the knee joint?

Answer 20

Femoral condyles
Posterior surface of the patella
2 tibial condyles
2 menisci