knee Flashcards
what are the boundaries of the popliteal fossa?
Superomedial - semitendonosis/semimembranosus
superolateral - biceps femoris
inferomedial - medial gastroc.
inferlateral - lateral gastroc and plantaris
roof - popliteal fossa
floor - femur, oblique popliteal lig, popliteus muscle
what is the importance of the popliteus muscle?
it is important to move the knee from an extended position to a flexed one
what are the contents of the popliteal fossa?
popliteal artery (genicular anastomoses and sural arteries. popliteal vein tibial and common peroneal nerve small saphenous vein popliteal bursa lymph nodes posterior femoral cutaneous
what two nerves come off the tibial and common peroneal nerves?
the medial and lateral sural cutaneous
what happens to the medial and lateral sural cutaneous about 2/3 down the calf?
the join together to form the sural cutaneous
what is the medial and lateral sural cutaneous too?
to the medial and lateral aspect of the calf
the descending genicular comes off what artery>?
the femoral artery
the anterior tibial artery comes off what artery?
the tibial artery
what 5 genicular arteries come off popliteal artery for the knee?
superior medial genicular inferior medial genicular superior lateral genicular inferior lateral genicular middle genicular
what are the three joint articulations of the knee?
patellofemoral, tibiofemoral, superior tibiofibular joint
what is the largest joint in the body?
tibiofemoral
what is the tibiofemoral joint suspected to injury?
because it is between 2 fixed bones
True or false: in the tibiofemoral joint the articulating surfaces are not congruent?
true
why are the articulating surfaces not congruent in the tibiofemoral joint?
because you cannot achieve stability through bony strucutres
what does the tibiofemoral joint rely on to aid in congruency/stability?
muscles, ligaments, and menisci
what is the differences between the medial and lateral condyle of the femur?
medial condyle: better developed with more mass
lateral condyle: has an angle that is associated with it
where does the IT band insert to?
gerdys tubercle
what is the pes anserone?
it is a point of insertion where it keeps muscles on the medial side of the knee taut
what do the femoral condyles sit on and where are the tibial condyles located?
the femoral condyles sit on the tibia plateau and the tibial condyles are located just inferior to the plateau
