muscles of knee Flashcards
action of bicep femoris (both)
knee flexion
origin and insertion of vastus medialis
O:linea aspera I:patella
action of gracilis on knee
flex only when knee is already flexed
action of rectus femoris
knee extension
origin and insertion of vastus intermedius
O:supe/ant/lat 2/3 shaft of femus I: patella
action of gastrocnemius (L/M) on knee
flexion
action of vastus lateralis
knee extension
origin and insertion of rectus femoris
O: ant/inf iliac spine I:patella
action of plantaris on knee
-stabilization (prevent ant movement of femur) -flexion
action of vastus medialis
knee extension
origin and insertion of bicep femoris (L/S)
O:
- L: ischial tuberosity
- S: inf 1/3 of linea aspera
I: post lat condyle of tibia and head of fibula
action of semimembranosis
knee flexion
action of semitendinosis
knee flexion
origin and insertion of semimembranosis
O: ischial tuberosity I:post me condyle of tibia
action of vastus intermedius
knee extension
