Chapter 9 Flashcards
Supports body weight from above and transmits forces to the ground below, as well as allows movement between the…….
Femur and Tibia
What is another name for the patella?
Kneecap
Patella is classified as which type of bone?
Seasmoid
The distal femoral landmarks are :
They articulate with the
Lateral and medial femoral condyles
Tibia and patella
True or False?Medial condyle is slightly more distal and slightly larger than lateral
True
Tibal landmarks have articulation with
femur
Posterior base of patella fits between lateral and medial condyles on anterior surface of femur
Patellofemoral articulation
You have two ligaments… what are they?
Collateral and cruicate ligament
Provide stability to either side of the joint
Prevent abduction and adduction
Medial Collateral and Lateral Collateral Ligaments
Provide stability from front to back
Prevent anterior/posterior displacement
Cruciate ligament
Semilunar fibrocartilaginous structures within the joint cavity of the knee
Mensci
Each knee has menisci on proximal end ……, on the medial and lateral condylar surfaces
end of tibia
Tibiofemoral joint:
Sagittal plane
Maximum extension:
Maximum flexion:
Tibiofemoral joint:
Sagittal plane
Maximum extension: 5-10°
Maximum flexion: 120-150°
Transverse plane
With knee flexed 30° or more:
internal rotation of
external rotation
Transverse plane
With knee flexed 30° or more:
internal rotation of 30°
external rotation 45°
True or False? Femur rolls and glides over both menisci during extension-flexion
True
During the last 30° of knee extension on fixed femur, the tibia externally rotates about
During the last 30° of knee extension on fixed femur, the tibia externally rotates about 10 °
What is another name for knee joint?
Tibiofemoral
Central line of pull of
quadriceps runs from the
……..spine to the center of patella
anterior superior iliac spine
Line of pull of patella tendon runs
from center of patella to center
of….
tibial tuberosity
Angle formed by the intersection
of these two lines at the patella
is the ….
Angle formed by the intersection
of these two lines at the patella
is the Q angle
Name the muscles that are anterior and involved in extension
Rectus Femoris Vastus Lateralis Vastus Medialis Vasustus intermedialis Saritoritus Gracialis
Posterior: Mostly Knee Flexion (also rotation)
^Biceps femoris ^Semimembranosus ^Semitendinosus Popliteus Gastrocnemius Plantaris
These muscles are called……muscles because they have actions at the hip and knee.
biarticular
join together distally to form pes anserinus
Saritouris, gracilis, and semitendonous
