kin 3304 ch9

Which of the following is not true regarding the bursae of the knee?

Bursae are composed mainly of fatty tissue.

Which of the following is correct regarding the patellofemoral joint?

Classified as an arthrodial type joint

Which of the following is not true regarding the quadriceps muscle group?

Covered by the vastus fascia

Muscles that flex the knee include all of the following except:

tensor fascia latae.

The tibia bears the majority of the weight as compared to the fibula.

true

Which of the following is not true regarding the rectus femoris, vastus medialis, vastus intermedius, and vastus lateralis?

All are superficial and palpable, except the vastus medialis.

Which of the following is not correct regarding menisci in the knee joint?

Decreases stability

Which of the following muscles internally rotates the knee?

Semimembranosus

The anterior and posterior cruciate ligaments are located on the outermost anterior and posterior surfaces of the knee joint.

false

The femoral condyles articulate with the fibular condyles during flexion of the knee.

false

The hamstring muscles function as a decelerator of the knee when decreasing speed to change direction and especially when landing from a jump.

false

The only uniarticular knee flexor is the _____.

popliteus

All the three vasti muscles of the quadriceps originate on the proximal femur and insert on the patellar superior pole.

true

The knee joint is the largest joint in the body.

true

Which of the following is not true regarding the hamstring muscle group?

Provides static stability to the knee joint

Which of the following is not true regarding strength and endurance being essential for maintenance of patellofemoral stability?

Strength and flexibility are not often a problem with the muscles of the knee joint.

Which of the following is not considered to be one of the quadriceps muscle group?

Vastus medius

The most common serious knee ligament injury involves the _____.

anterior cruciate ligament

Which of the following is not true with respect to the synovial cavity?

Provides the knee with stability

The popliteus muscle originates on the medial aspect of the lateral femoral condyle.

false

The quadriceps muscles perform eccentric contractions during accelerating actions.

false

The semimembranosus muscle inserts anteromedially on the medial tibial condyle.

false

The semitendinosus muscle is located laterally and internally rotates the knee.

false

Which of the following muscles externally rotates the knee?

Biceps femoris

The rectus femoris is more powerful in extending the knee when the hip is in _____.

extension

The pes anserinus tendinous expansion comprises the _____.

gracilis, sartorius, and semitendinosus

The sartorius, gracilis, and semitendinosus muscles all insert just below the medial condyle on the upper anteromedial tibial surface.

true

Which of the following is not correct regarding the knee joint proper?

Sometimes referred to as a trochoginglymus joint because of internal and external rotation occurring when in full extension

Tears in menisci can occur due to both compression and shear forces during rotation while flexing or extending during quick directional changes in running.

true

The biceps femoris muscle inserts primarily on the head of the fibula.

true

The fibula is not part of the ginglymus articulation of the knee joint.

true

The iliotibial tract of the tensor fasciae latae muscle inserts on Gerdy's tubercle.

true

The knee joint can extend to 180 degrees normally, although some individuals can extend slightly further.

true

The lateral fibula serves as the attachment for knee joint structures but does not articulate with the femur or patella.

true

The patella serves as a pulley by improving the angle of pull with the result being a greater mechanical advantage for the quadriceps during knee extension.

true

The semimembranosus muscle is located posteromedially and internally rotates the knee.

true

All of the following are key bony landmarks for knee joint actions except:

Gerdy's condyle.

The vastus lateralis provides a(n) _____ pull on the patella when contracting concentrically.

superolateral

The vastus medialis provides a(n) _____ pull on the patella when contracting concentrically.

superomedial

Articular cartilage is located on the surfaces of both the femur and tibia.

true

As the knee approaches full extension, the tibia must externally rotate approximately 10 degrees to achieve proper alignment of the tibial and femoral condyles.

true