Hip and Thigh muscles OIAN Flashcards
Pectineus insertion
- origin: pubis
- insertion: posterior surface of femoral shaft
- action: adducts hip
- nerve supply: obturator and femoral
Iliacus (iliopsoas) insertion
- origin: iliac fossa, iliac crest, lateral sacrum
- insertion: lesser trochanter
- action: flexes hip
- nerve supply: femoral
Gluteus minimus insertion
- origin: lateral surface of ilium
- insertion: greater trochanter
- action: abduct and medially rotate hip
- nerve supply: superior gluteal*
Pectineus origin
- origin: pubis
- insertion: posterior surface of femoral shaft
- action: adducts hip
- nerve supply: femoral and obturator
Gracilis nerve supply
- origin: pubis
- insertion: medial surface of proximal tibia
- action: adducts and medially rotates hip, flex knee
- nerve supply: obturator
Gluteus maximus action
- origin: dorsal ilium, sacrum, and coccyx
- insertion: iliotibial tract, gluteal tuberosity
- action: extend, abduct, laterally rotates hip
- nerve supply: inferior gluteal*
Vastus intermedius (quadriceps) action
- origin: femoral shaft
- insertion: tibial tuberosity
- action: extends knee
- nerve supply: femoral
Adductor magnus insertion
- origin: ischium and pubis
- insertion: posterior surface of femoral shaft
- action: adducts hip
- nerve supply: obturator
Biceps femoris insertion
- origin: long: ischial tuberosity; short: posterior surface of femoral shaft
- insertion: head of fibula, lateral surface of proximal tibia
- action: extends hip, flexes knee
- nerve supply: tibial
Gluteus maximus insertion
- origin: dorsal ilium, sacrum, coccyx
- insertion: gluteal tuberosity (of femur), iliotibial tract
- action: extend, abduct, laterally rotate hip
Piriformis origin
- origin: anterolateral surface of sacrum
- insertion: greater trochanter
- action: laterally rotate hip
- (nerve supply: ventral rami)
Tensor fasciae latae nerve supply
- origin: anterior superior iliac spine (ASIS)
- insertion: iliotibial tract (IT band)
- action: tenses iliotibial tract
- nerve supply: superior gluteal*
Piriformis action
- origin: anterolateral surface of sacrum
- insertion: greater trochanter
- action: laterally rotates hip
- (nerve supply: ventral rami)
Vastus intermedius (quadriceps) insertion
- origin: femoral shaft
- insertion: tibial tuberosity
- action: extend knee
- nerve supply: femoral
Semitendinosus (hamstrings) origin
- origin: ischial tuberosity
- insertion: medial surface of proximal tibia
- action: extend hip, flex knee
- nerve supply: tibial
Gluteus maximus origin
- origin: dorsal ilium, sacrum and coccyx
- insertion: iliotibial tract, gluteal tuberosity
- action: extend, laterally rotate, abduct hip
- nerve supply: *inferior gluteal
Sartorius nerve supply
- origin: anterior superior iliac spine (ASIS)
- insertion: medial surface of proximal tibia
- action: laterally rotate and flex hip, flex knee
- nerve supply: femoral
Semimembranosus (hamstrings) insertion
- origin: ischial tuberosity
- insertion: medial surface of proximal tibia
- action: extend hip, flex knee
- nerve supply: tibial
Rectus femoris (quadriceps) origin
- origin: anterior inferior iliac spine
- insertion: tibial tuberosity
- action: flexes hip, extends knee
- nerve supply: femoral
*Gluteus minimus origin
- origin: lateral surface of ilium
- insertion: greater trochanter
- action: abduct and medially rotate hip
- nerve supply: superior gluteal*
Piriformis insertion
- origin: anterolateral surface of sacrum
- insertion: greater trochanter
- action: laterally rotate hip
- (nerve supply: ventral rami)
Semimembranosus (hamstrings) action
- origin: ischial tuberosity
- insertion: medial surface of proximal tibia
- action: extend hip, flex knee
- nerve supply: tibial
Semitendinosus (hamstrings) insertion
- origin: ischial tuberosity
- insertion: medial surface of proximal tibia
- action: extend hip, flex knee
- nerve supply: tibial
Psoas major (iliopsoas) insertion
- origin: T12-L5
- insertion: lesser trochanter
- action: flexes hip
- (nerve supply: ventral rami)
Gluteus medius nerve supply
- origin: lateral surface of ilium
- insertion: greater trochanter
- action: abduct and medially rotate hip
- nerve supply: superior gluteal*
Gracilis origin
- origin: pubis
- insertion: medial surface of proximal tibia
- action: adducts & medially rotates hip, flexes knee
- nerve supply: obturator
Vastus lateralis (quadriceps) origin
- origin: femoral shaft
- insertion: tibial tuberosity
- action: extend knee
- nerve supply: femoral
Semitendinosus (hamstrings) action
- origin: ischial tuberosity
- insertion: medial surface of proximal tibia
- action: extend hip, flex knee
- nerve supply: tibial
Gluteus minimus nerve supply
- origin: lateral surface of ilium
- insertion: greater trochanter
- action: abduct and medially rotate hip
- nerve supply: superior gluteal*
Semimembranosus (hamstrings) origin
- origin: ischial tuberosity
- insertion: medial surface of proximal tibia
- action: extend hip, flex knee
- nerve supply: tibial
Biceps femoris nerve supply
- origin
- long: ischial tuberoisty
- short: post. surface of femoral shaft
- insertion: head of fibula, lateral surface of proximal tibia
- action: extend hip, flex knee
- nerve supply: tibial