3304 ch9

The only uniarticular knee flexor is the _____. a. Biceps femoris b. Popliteus c. Semimembranosus d. Vastus intermedius

b. Popliteus

The tibial division of the sciatic nerve innervates all of the following muscles except? a. Semitendinosus b. Semimembranosus c. Sartorius d. Biceps femoris

c. Sartorius

The pes anserinus tendinous expansion is comprised from the ______. a. Biceps femoris, semimembranosus, semitendinous b. Gracilis, semimembranosus, semitendinous c. Sartorius, semimembranosus, semitendinous d. Gracilis, sartorius, semitendinous

d. Gracilis, sartorius, semitendinous

Which of the following is not considered to be one of the quadriceps muscle group? a. Rectus femoris b. Vastus lateralis c. Vastus intermedius d. Vastus medius

d. Vastus medius

The vastus lateralis provides a _____ pull on the patella when contracting concentrically. a. inferolateral b. superior c. superolateral d. superomedial

superolateral

The Q angle is usually ____ or less for males and ___ or less for females. a. 20, 10 b. 10, 20 c. 15, 15 d. 15, 20

15, 20

The insertion of the rectus femoris muscle is the _______ aspect of the patella and the patellar tendon to the tibial tuberosity. a. Superior b. Inferior c. Medial d. Lateral

A Superior

The femoral nerve innervates all of the following muscles except? a. Biceps femoris b. Rectus femoris c. Vastus lateralis d. Vastus intermedius

Biceps femoris

Which of the following muscles externally rotates the knee? a. Semitendinosus b. Semimembranosus c. Vastus lateralis d. Biceps femoris

Biceps femoris

Which of the following is not true regarding the bursae of the knee? a. There are more than 10 bursae in and around knee b. Some bursae are connected to synovial cavity c. Bursae are composed mainly of fatty tissue d. Bursae absorb shock and/or reduce friction

Bursae are composed mainly of fatty tissue

Which of the following is correct regarding the patellofemoral joint? a. Classified as an arthrodial type joint b. Hinge nature of patella on femoral condyles c. This joint lacks ligaments d. The joint is not commonly injured

Classified as an arthrodial type joint

Which of the following is not true regarding the quadriceps muscle group? a. Consists of 4 separate muscles b. Serve to extend the knee c. Covered by the vastus fascia d. Located in anterior compartment of the thigh

Covered by the vastus fascia

Which of the following is not correct regarding menisci in the knee joint? a. Forms cushions between bones b. Attached to tibia c. Deepens tibial fossa d. Decreases stability

Decreases stability

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 lateral collateral ligament is more frequently injured than other knee joint ligaments.

False

The lateral collateral ligament originates on the lateral femoral condyle distally to popliteus origin and inserts on the fibular head.

False

The patella is classified as an "irregular" bone because it is imbedded in the patellar tendon.

False

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

False

The quadriceps muscles perform eccentric contractions during accelerating actions.

False

The semimembranosus inserts anteromedially on the medial tibial condyle. Ans: False

False

The semitendinosus is located laterally and internally rotates the knee.

False

All of the following are key bony landmarks of the knee joint except? a. Superior & inferior patellar poles b. Tibial tuberosity c. Gerdy's condyle d. Medial & lateral femoral condyles

Gerdy's condyle

Which of the following is true regarding the medial collateral ligament? a. Maintains medial stability by resisting valgus forces or preventing knee from being abducted b. Maintains medial stability by resisting varus forces or preventing knee from being abducted c. Maintains medial stability by resisting valgus forces or preventing knee from being adducted d. Maintains medial stability by resisting valgus forces or preventing knee from being flexed

Maintains medial stability by resisting valgus forces or preventing knee from being abducted

Which of the following is not true regarding the hamstring muscle group? a. Responsible for knee flexion b. Located in posterior compartment of thigh c. Consists of 3 separate muscles d. Provides static stability to the knee joint

Provides static stability to the knee joint

Which of the following is not true with respect to the synovial cavity? a. Supplies knee with synovial fluid b. Provides the knee with stability c. Lies under patella and between surfaces of tibia & femur d. Considered to be the "capsule of the knee"

Provides the knee with stability

Which of the following muscles internally rotates the knee? a. Semimembranosus b. Tensor fascia latae c. Vastus medialis d. Biceps femoris

Semimembranosus

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

True

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

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

True

The biceps femoris 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 fascia latae inserts on Gerdy's condyle.

True

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

True

The knee joint is the largest joint in the body.

True

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

True

The medial collateral ligament originates on the medial aspect of upper medial femoral condyle and inserts on medial tibial surface.

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

True

The semimembranosus is located posteromedially and internally rotates the knee.

True

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

True

The tibial nerve innervates both the semitendinosus and semimembranosus.

True

The tibial tuberosity serves as the insertion point for all of the quadriceps muscles.

True

The rectus femoris is more powerful in extending the knee when the hip is in _____. a. Extension b. Flexion c. Internal rotation d. External rotation

a. Extension

In basketball and soccer injury to the ______ occurs much more commonly to females than to males. a. anterior cruciate ligament b. lateral collateral ligament c. medial collateral ligament d. posterior cruciate ligament

anterior cruciate ligament

The most common serious knee ligament injury involves the _____. a. anterior cruciate ligament b. lateral collateral ligament c. medial collateral ligament d. posterior cruciate ligament

anterior cruciate ligament

Which of the following is not true regarding the rectus femoris, vastus medialis, vastus intermedius, vastus lateralis? a. All attach to the patella then to tibial tuberosity via patellar tendon b. All are superficial and palpable except vastus medialis c. Power may be measured by the vertical jump test d. Generally desired to be 25% to 33% stronger than hamstring group

All are superficial and palpable except vastus medialis

The insertion of the tensor fasciae latae muscle is one-fourth of the way down the thigh into the iliotibial tract, which inserts onto Gerdy's tubercle of the ______ tibial condyle. a. Posterolateral b. Posteromedial c. Anteromedial d. Anterolateral

Ans: d Anterolateral

Which of the following is not correct regarding the knee joint proper? a. Also referred to as the tibiofemoral joint b. Classified as a ginglymus joint c. Sometimes referred to as trochoginglymus joint due to internal and external rotation occurring when in full extension d. Considered by some authorities to be a condyloid type joint Ans: c

Sometimes referred to as trochoginglymus joint due to internal and external rotation occurring when in full extension

Which of the following is not true regarding strength and endurance being essential for maintenance of patellofemoral stability? a. Quads are particularly prone to atrophy when injuries occur b. May be developed by resisted knee extension activities from a seated position c. Functional weight bearing activities such as step-ups or squats are particularly useful for strengthening and endurance d. Strength and flexibility are not often a problem with the muscles of the knee joint

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

Muscles that flex the knee include all of the following except? a. Biceps femoris b. Tensor fascia latae c. Sartorius d. Gracilis

Tensor fascia latae