Knee Joint
All of the following are key bony landmarks for knee joint actions except: a. Gerdy's tubercle b. Upper posterior medial surface of tibia c. Tibial tuberosity d. upper anterior medial surface of tibia
a. Gerdy's tubercle
The femoral condyles articulate with the fibular condyles during flexion of the knee. TURE/FALSE
FALSE
The fibula is not part of the ginglymus articulation of the knee joint. TRUE/FLASE
TRUE
The quadriceps muscles perform eccentric contractions before concentric contractions in explosive jumping. TURE/FALSE
TRUE
In basketball and soccer injury to the _____ occurs much more commonly to females than to males.
ACL
The most common serious knee ligament injury involves the _____.
ACL
As the knee approaches full extension the tibia must internally rotate approximately 10 degrees to achieve proper alignment of the tibial and femoral condyles. TRUE/FLASE
FALSE
The anterior and posterior cruciate ligaments are located on the outermost anterior and posterior surfaces of the knee joint. TURE/FALSE
FALSE
The lateral collateral ligament is more frequently injured than other knee joint ligaments. TRUE/FALSE
FALSE
The popliteus muscle originates on the medial aspect of the lateral femoral condyle and assists with knee internal rotation. TRUE/FASLE
FALSE
The semimembranosus muscle is located posteromedially and internally rotates the knee and is directly antagonist to the vastus lateralis in all of its actions. TURE/FALSE
FALSE
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
All three of the vasti muscles of the quadriceps originate on the proximal femur and insert on the patellar superior pole. TRUE/FALSE
TRUE
Articular cartilage is located on the surfaces of the femur, tibia and patella. TURE/FALSE
TRUE
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/FLASE
TRUE
The biceps femoris muscle inserts primarily on the head of the fibula and assists with knee external rotation. TRUE/FALSE
TRUE
The knee joint can extend to 180 degrees normally although some individuals can extend slightly further. TRUE/FALSE
TRUE
The lateral fibula serves as the attachment for knee joint structures but does not articulate with the femur or patella. TRUE/FALSE
TRUE
The medial collateral ligament originates on the medial aspect of upper medial femoral condyle and inserts on medial tibial surface. TRUE/FALSE
TRUE
The sartorius, gracilis, and semitendinosus muscles all insert just below the medial condyle on the upper anteromedial tibial surface and assists with knee internal rotation. TRUE/FALSE
TRUE
The tibia bears the majority of the weight as compared to the fibula. TURE/FALSE
TRUE
Which of the following muscles internally rotates the knee when contracting concentrically? a. Semimembranosus b. Biceps femoris c. Rectus femoris
a. Semimembranosus
The tibial division of the sciatic nerve innervates all of the following muscles except: a. Biceps femoris long head b. Vastus intermedius c. Biceps femoris short head d. Vastus medialis
c. Biceps femoris short head
Which of the following muscles is important in providing dynamic medial stability to the knee joint because of the manner in which it crosses the joint and is also responsible for internal rotation of the knee? a. Semitendinosus b. Biceps femoris c. Semimembranosus
c. Semimembranosus