The Knee Flashcards
Thigh bone. Convex
Femur
Weight bearing bone in lower leg. Medial Side. Concave
Tibia
Small bone in lower leg (lateral side)
Fibula
Knee Cap
Patella
What tendon is the knee cap located in?
Rectus Femoris
Largest sesamoid bone in the body
Patella
Provide cushion from stresses placed on the knee joint. Maintain spacing between the femur and the tibia
Menisci
What shape is the medial meniscus?
C-shaped
What shape is the lateral meniscus?
Oval shaped
What type of blood supply is supplied to the menisci?
Generally poor
Gives blood supply to the menisci?
Medial Genicular Artery
Good Blood Supply
Red-Red
Minimal Blood Supply
Red-White
Avascular
White-White
Prevents the femur from moving posteriorly during weight bearing.
ACL
What are the three bands of the ACL called
anteromedial, intermediate, and posterolateral
Limits anterior translation of the tibia in NWB
ACL
Stabilizes the tibia against excessive stress internal rotation
ACL
Works with hamstring group to stabilize the knee joint
ACL
Resists internal rotation
PCL
Prevents hyperextension of the knee
PCL
Limits anterior translation of the femur during weight bearing
PCL
Limits posterior translation of the tibia in NWB
PCL
Prevents the knee from valgus forces and external rotating forces
MCL
Lateral force
Valgus force
Medial force
Varus force
Principal stabilizer of the knee in a valgus position when combined with rotation.
MCL
Stabilizes the knee laterally
LCL
Synovial tissue separated by a thin film of fluid
Bursae
Reduces friction between anatomical structures
Bursae
Largest Fat Pad?
Infrapatellar
Function is to provide a cushion to the front of the knee and separate the patellar tendon from the joint capsule
Fat Pads
Nerve providing blood supply to the hamstrings and gastroc
Tibial Nerve