knee Flashcards
how knee stailised
menisci to deepen tibial articulation, capsule , ligaments, muscles
which ligaments
intracapsular- cruciate
capsule- oblique popliteal
extracapsular-collateral
describe path of cruciate
PAMs APpLes
• Posterior passes Anterior inserts Medially
• Anterior passes Posterior inserts Laterally
compare cruciate ligements
ACL- weaker of the two
• Relatively poor blood supply
• Limits anterior movement of Tibia on Femur
• PCL- stronger of the two
• Limits posterior movement of tibia on femur
• In weight bearing flexed knee- PCL is the main stabilizer
role medial/lateral collateral
latera- varus forces
medial- valgus forces
flexion knee
• Hamstrings: Biceps femoris, semimembranosus, semitendinosus
SCIATIC
• Assisted by: Gracilis, sartorius, popliteus, gastrocnemius
extension knee
• Quadriceps femoris (4 muscles)- Rectus femoris, vastus medialis, vastus lateralis, vastus intermedius
FEMORAL
inserts into tibial tuberosity
medial rotation knee
Semitendinosus, semimembranosus, gracilis, sartorius, popliteus
lateral rotation knee
Biceps Femoris
SCIATIC
femoral triangle boundaries
S- inguinal ligament
L- sartorius
M- adductor longus
contents femoral triangle
Lateral to medial NAVEL femoral nerve femoral artery femoral vein emoty space lymph
addcuctor canal boundaries
Anterior: Sartorius. Lateral: Vastus medialis. Posterior: Adductor longus and adductor magnus.
thigh extension
rectus femoris and vastus muscles (femoral)
thigh flexion
sartorius and pectineus (femoral)
thigh adduction
adductor magnus/brevis/longus (obturator)