Unit 7: Knee Quiz

Question 1

Question 1
1 / 1 pts
The [fill in] is a sleeve around the knee that contributes to joint stability.

Answer 1

joint capsule

Question 2

Question 2
1 / 1 pts
The [fill in] transmits compression forces between the femur and tibia.

Answer 2

meniscus

Question 3

Question 3
1 / 1 pts
[Fill in] refers to the softening of the hyaline cartilage on the posterior aspect of the patella.

Answer 3

Chondromalacia

Question 4

Question 4
1 / 1 pts
The [fill in] protects the knee joint and increases the mechanical advantage of the muscles acting at the knee.

Answer 4

patella

Question 5

Question 5
1 / 1 pts
[fill in] serve as anteroposterior stabilizers of the knee joint.

Answer 5

Correct Answers:
cruciates
anterior and posterior cruciate ligaments
Cruciate ligaments

Question 6

Question 6
1 / 1 pts
If a dancer injures his/her/their [fill in] he/she/they may also tear the medial meniscus which is attached to it.

Answer 6

Correct Answers:
medial collateral ligament
MCL

Question 7

Question 7
1 / 1 pts
The patella articulates with the [fill in].

Answer 7

femur

Question 8

Question 8
1 / 1 pts
The [fill in] refers to the posterior knee where nerves, arteries and veins are protected.

Answer 8

Correct Answers:

popliteal region
popliteal
popliteus
popliteal region

Question 9

Question 9
What 3 structures are stretched during hyperextension of the knees, leading to critical instability at the joint and possible damage to the articular cartilage?

Answer 9

The stretching of the ACL, PCL, and the posterior aspect of the joint capsule.

Question 10

Question 10
When there is poor patellar tracking the vastus [fill in] is usually weak compared to the others.

Answer 10

medialis

Question 11

Question 11
1 / 1 pts
The muscle that reverses the “screw home mechanism” (position of the knee when it is locked in complete extension) is called [fill in]?

Answer 11

popliteus

Question 12

Question 12 Name two of the four movements that can cause tearing of the anterior cruciate ligament (ACL).

Answer 12

TBD

Katarina’s Response: Pivoting and Jumping

Someone else’s:
deceleration, jumping

Question 13

Question 13 According to Lulu Sweigard, what image frequently used in dance classes may contribute to chondromalacia and over-developed thighs?

Answer 13

TBD

Katarina’s Response: Pulling up your knee caps can cause chondromalacia and overdevelop thighs because they are being forced being used posturally.

Question 14

Question 14 Name four of the five pedagogical concepts that may decrease compression forces at the knee in a deep knee bend, according to Clippinger.

Answer 14

TBD

Katarina’s Response:
1) Don’t sit at the bottom of a knee bend.
2) Don’t use an external weight.
3) Use adductors to reduce forces on quads.
4) Make use of external support to aid in balance and unweighting of knees.

Someone else’s:

Question 15

Question 15 What impact does anterior pelvic tilt, inclination of the head, and forward-leaning of the torso have on knee compression forces in a deep knee bend in external rotation?

Answer 15

Katarina’s Response: It prevents you from using your adductors for descent. The knee will have to stabilize and it increases the compression forces on the knee and forces external rotation from the floor up.

Someone else’s:
These movements can all lead to the overuse of the quads/vastes, and prevent the adductors from acting with their full potential.

May increase compression forces at the knee by lessening the recruitment of adductors

Question 16

Question 16 Why might the directive “keep your knees over your second toe” be counterproductive for some dancers?

Answer 16

Katarina’s Response: Every person’s stance is different and standing with the knee over the second toe may not be in alignment with their personal knee.

Someone else’s:
For some dancers, keeping their knee over their second toe is not in accordance with their natural alignment. It may also encourage screwing the knee for some, which will cause damage in the long run.

Does not take into account individual amounts of
tibial torsion