Ch 10-Knee Joint
What are the hamstring muscles?
Semitendinosus,Semimembranosus,Biceps Femoris
The tibial division of the sciatic nerve innervates all of the following muscles?
semitendinosus, semimembranosus, biceps femoris (long head)
T or F? The lateral collateral ligament is more frequently injured than other knee joint ligaments.
False.ACL
T or F? The femoral condyles articulate with the fibular condyles during flexion of the knee?
False.Tibial
Which of the following muscles internally rotates the knee?
Semitendinosus, Semimembranosus, Popliteus
What are the muscles that flex the knee?
Semitendinosus,Semimembranosus, Biceps Femoris
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.
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.
The sartorius, gracilis, and semitendinosus all insert just below the medial condyle on upper anteromedial tibial surface
The sartorius, gracilis, and semitendinosus all insert just below the medial condyle on upper anteromedial tibial surface
All three vasti muscles of quadriceps originate on proximal femur and insert on patellar superior pole.
All three vasti muscles of quadriceps originate on proximal femur and insert on patellar superior pole.
The most common serious knee ligament injury involves the _____.
ACL
As the knee approaches full extension the tibia must externally rotate approximately 10 degrees to achieve proper alignment of the tibial and femoral condyles
As the knee approaches full extension the tibia must externally rotate approximately 10 degrees to achieve proper alignment of the tibial and femoral condyles
Which of the following muscles externally rotates the knee?
Biceps Femoris
T or F? The lateral collateral ligament originates on the lateral femoral condyle distally to popliteus origin and inserts on the fibular head
F
T or F? The medial collateral ligament originates on the medial aspect of upper medial femora condyle and inserts on medial tibial surface
F
t or f? The semimembranosus inserts anteromedially on the medial tibial condyle.
F
T or F? The patella is classified as an "irregular" bone because it is imbedded in the patellar tendon?
False.Sesamoid Bone
What are the quad muscles?
Rectus Femoris,Vastus Lateralis,Vastus Intermedius,Vastus Medialis
Tears in menisci can occur due both compression and shear forces during rotation while flexing or extending during quick directional changes in running.
Tears in menisci can occur due both compression and shear forces during rotation while flexing or extending during quick directional changes in running.
The anterior and posterior cruciate ligaments are located on the outermost anterior and posterior surfaces of the knee joint
The anterior and posterior cruciate ligaments are located on the outermost anterior and posterior surfaces of the knee joint
The erector spinae iliocostalis are considered to be agonist muscles during extension of the spine
The erector spinae iliocostalis are considered to be agonist muscles during extension of the spine
The horizontal indentations that transect the rectus abdominis, giving it a segmented appearance is the linea alba
The horizontal indentations that transect the rectus abdominis, giving it a segmented appearance is the linea alba
The knee joint can extend to 180 degrees normally although some individuals can extend slightly further.
The knee joint can extend to 180 degrees normally although some individuals can extend slightly further.
The knee joint is the largest joint in the body
The knee joint is the largest joint in the body
The lateral fibula serves as the attachment for knee joint structures but does not articulate with the femur or patella.
The lateral fibula serves as the attachment for knee joint structures but does not articulate with the femur or patella.
The location of the erector spinae muscles enables them to extend spine and assist in rotation and lateral flexion
The location of the erector spinae muscles enables them to extend spine and assist in rotation and lateral flexion
The quadriceps muscle group functions as a decelerator to knee joint flexion in weight-bearing movements by contracting concentrically to prevent too rapid of a downward movement.
The quadriceps muscle group functions as a decelerator to knee joint flexion in weight-bearing movements by contracting concentrically to prevent too rapid of a downward movement.
The semimembranosus is located posteromedially and internally rotates the knee.
The semimembranosus is located posteromedially and internally rotates the knee.
The semitendinosus is located laterally and internally rotates the knee.
The semitendinosus is located laterally and internally rotates the knee.
The tibia bears the majority of the weight as compared to the fibula.
The tibia bears the majority of the weight as compared to the fibula.
T or F? The fibula is not part of the ginglymus articulation of the knee joint?
True
T or F? The spinous processes are located anterior with respect to the vertebral bodies
f. posterior
t or F? The hamstring muscles function as a decelerator of the knee when decreasing speed tSo change direction and especially when landing from a jump
f.accelerator
What are the 6 key bony landmarks of the knee?
superior&inferior patellar poles,Tibial tuberosity,Gerdy's Tubercle,Medial&Lateral Femoral Condyles,Upper Anterior Medial Tibial surface,Head of Fibula
