Knee joint peripheral structures?

Question 1

What are the collateral ligaments of the knee?

Answer 1

medial collateral ligament

lateral collateral ligament

Question 2

What is the function of the collateral ligaments of the knee

Answer 2

stabilize the knee laterally, promote locking of joint

Question 3

What does the medial collateral ligaments span?

Answer 3

Medial collateral ligament (MCL) spans medial tibia to medial epicondyle of femur

Question 4

What does the lateral collateral ligaments span?

Answer 4

Lateral collateral ligament (LCL) spans head of fibula to lateral epicondyle of femur

Question 5

Which collateral ligament is more cord like?

Answer 5

lateral collateral ligament

Question 6

which collateral ligament is is broad and more strap like?

Answer 6

medual collateral ligament

Question 7

how is the line of gravity when the knee is locking?

Answer 7

Line of gravity runs anterior to knee.

Question 8

How does the femoral condyles articulate with knee in knee locking?

Answer 8

Femoral condyles are elliptical; in extension, flatter surface articulates with tibia.

Question 9

Where are the collateral ligaments attached to promote knee locking?

Answer 9

Collateral ligaments attach posterior to point of contact between femur and tibia.

Question 10

What collateral ligaments are at risk to be torn on side impacts to the knee?

Answer 10

the ligament on the opposite side

Question 11

What is the anterior surface of the knee reinforced by?

Answer 11

longitudinal (superficial) and transverse (deep) layers of the patellar retinaculum

Question 12

What is the posterior surface of the knee reinforced by?

Answer 12

Posterior surface is reinforced by the oblique popliteal ligament,

Question 13

Where does the popliteal ligament extend from?

Answer 13

extends from the tendon of the semimembranosus superiorly and laterally to the femur.

Question 14

what lies behind the patellar ligament?

Answer 14

a large infra patellar fat pad
in front of infrapatellar (single, midline) and alar (medial and lateral) folds in the anterior wall of the joint capsule.

Question 15

What are the bursae of the knee?

Answer 15

suprapatellar bursa (or suprapatellar pouch), subpopliteal
recessprepatellar,
subcutaneous infrapatellar,
deep infrapatellar

Question 16

Which bursae are extensions of the synovial space?

Answer 16

suprapatellar bursa (or suprapatellar pouch), subpopliteal

Question 17

what are the anterior bursae?

Answer 17

recessprepatellar,
subcutaneous infrapatellar,
deep infrapatellar

Question 18

What muscle insert onto the suprapateelar bursae?

Answer 18

Articularis genu muscles

Question 19

What is the function of the articulates genu muscles?

Answer 19

they pull the suprapatellar bursae away from the knee joint during extension

Question 20

where does the articulates genu muscle originate?

Answer 20

anterior femur

sometimes blended with vastus medialis

Question 21

What is the blood supply and innervation of articulates genu?

Answer 21

femoral nerve and artery

Question 22

What are politeal cyst are bakers cyst?

Answer 22

Abnormal fluid-filled synovial sacs, usually caused by chronic knee joint effusion (leakage), or bulging of the synovial sac into surrounding tissues.

Question 23

in who are popliteal are bakers cyst common?

Answer 23

Common in children, where they are often asymptomatic and usually disappear on their own

Question 24

What can politeal are bakers cyst result in adults?

Answer 24

they can result from tears in the joint capsule or cartilage, especially the menisci. Minor cysts treated by limb elevation and rest. Lasting cysts may be aspirated to remove fluid. Surgical excision is reserved for the most chronic and painful cysts