Knee Flashcards
(28 cards)
Rectus femoris origin
Anterior inferior iliac spine, groove above the posterior brim of the acetabulum
Rectus femoris insertion
Base of the patella and via the ligamentum patellae into the tibial tuberosity
Rectus femoris nerve supply
Femoral n. L2-4
Rectus femoris function
Extension of the knee; flexion of the hip
Vastus lateralis origin
Greater trochanter of the femur, intertrochanteric line, linea aspera, gluteal tuberosity
Vastus lateralis insertion
lateral border of the patella and via the liagamentum patellae into the tibial tuberosity
Vastus lateralis nerve supply
Femoral n. L2-4
Vastus lateralis function
Extension of the knee
Vastus medialis origin
Intertrochanteric line, linea aspera, medial supracondylar line of the femur
Vastus medialis insertion
Medial border of the patella and via the ligamentum patellae into the tibial tuberosity
Vastus medialis nerve supply
Femoral n. L2-4
Vastus medialis function
Extension of the knee
Vastus intermedius origin
Anterior and lateral surfaces of the upper 2/3 of the body of the femur
Vastus intermedius insertion
Base of the patella and via the ligamentum patellae into the tibial tuberosity
Vastus intermedius nerve supply
Femoral n. L2-4
Vastus intermedius function
Extension of the knee
Biceps femoris origin
Long head: ischial tuberosity Short head: lateral lip of the linea aspera of the femur and the lateral intermuscular septum
Biceps femoris insertion
Lateral aspect of the head of the fibula
Biceps femoris nerve supply
Long head: tibial portion of the sciatic nerve. Short head: peroneal portion of the sciatic nerve. L5, S1, S2
Biceps femoris function
Extension of the hip, flexion and lateral rotation of the knee
Semitendinosus origin
Ischial tuberosity
Semitendinosus insertion
Proximal aspect of the medial surface of the tibia
Semitendinosus nerve supply
Tibial portion of the sciatic n. L5, S1, S2
Semitendinosus function
Extension of the hip, flexion and medial rotation of the knee
