Studied by 56 peopleouter surface of ilium, sacrum, coccyx, sacrotuberous ligament
gluteus maximus origin
iliotibial tract and gluteal tuberosity of femur
gluteus maximus insertion
inferior gluteal nerve
gluteus maximus nerve supply
extends and laterally rotates hip joint; through iliotibial tract, it extends knee joint
gluteus maximus action
outer surface of ilium
gluteus medius origin
lateral surface of greater trochanter of femur
gluteus medius insertion
superior gluteal nerve
gluteus medius nerve supply
abducts thigh at hip joint; tilts pelvis when walking to permit opposite leg to clear ground
gluteus medius action
outer surface of ilium
gluteus minimus origin
anterior surface of greater trochanter of femur
gluteus minimus insertion
superior gluteal nerve
gluteus minimus nerve supply
abducts thigh at hip joint; tilts pelvis when walking to permit opposite leg to clear ground
gluteus minimus action
iliac crest
tensor fasciae latae origin
iliotibial tract
tensor fasciae latae insertion
superior gluteal nerve
tensor fasciae latae nerve supply
assists gluteus maximus in extending the knee joint
tensor fasciae latae action
anterior surface of sacrum
piriformis origin
Upper border of greater trochanter of femur
piriformis insertion
First and second sacral nerves
piriformis nerve supply
Lateral rotator of thigh at hip joint
piriformis action
Inner surface of obturator membrane
obturator internus origin
Upper border of greater trochanter of femur
obturator internus insertion
sacral plexus
obturator internus nerve supply
Lateral rotator of thigh at hip joint
obturator internus action
spine of ischium
gemellus superior origin
Upper border of greater trochanter of femur
gemellus superior insertion
sacral plexus
gemellus superior nerve supply
Lateral rotator of thigh at hip joint
gemellus superior action
ischial tuberosity
gemellus inferior origin
Upper border of greater trochanter of femur
gemellus inferior insertion
sacral plexus
gemellus inferior nerve supply
Lateral rotator of thigh at hip joint
gemellus inferior action
Lateral border of ischial tuberosity
quadratus femoris origin
Quadrate tubercle of femur
quadratus femoris insertion
sacral plexus
quadratus femoris nerve supply
Lateral rotator of thigh at hip joint
quadratus femoris action
Anterior superior iliac spine
sartorius origin
Upper medial surface of shaft of tibia
sartorius insertion
Femoral nerve
sartorius nerve supply
Flexes, abducts, laterally rotates thigh at hip joint; flexes and medially rotates leg at knee joint
sartorius action
Iliac fossa of hip bone
iliacus origin
With psoas into lesser trochanter of femur
iliacus insertion
Femoral nerve
iliacus nerve supply
Flexes thigh on trunk; if thigh is fixed, it flexes the trunk on the thigh as in sitting up from lying down
iliacus action
Transverse processes, bodies, and intervertebral discs of the 12th thoracic and five lumbar vertebrae
psoas origin
With iliacus into lesser trochanter of femur
psoas insertion
Lumbar plexus
psoas nerve supply
Flexes thigh on trunk; if thigh is fixed, it flexes the trunk on thigh as in sitting up from lying down
psoas action
Superior ramus of pubis
pectineus origin
Upper end of linea aspera of shaft of femur
pectineus insertion
Femoral nerve
pectineus nerve supply
Flexes and adducts thigh at hip joint
pectineus action
Straight head: anterior inferior iliac spine Reflected head: ilium above acetabulum
rectus femoris origin
Quadriceps tendon into patella, then via ligamentum patellae into tubercle of tibia
rectus femoris insertion
Femoral nerve
rectus femoris nerve supply
Extension of leg at knee joint; flexes thigh at hip joint
rectus femoris action
Upper end and shaft of femur
vastus lateralis origin
Quadriceps tendon into patella, then via ligamentum patellae into tubercle of tibia
vastus lateralis insertion
Femoral nerve
vastus lateralis nerve supply
Extension of leg at knee joint
vastus lateralis action
Upper end and shaft of femur
vastus medialis origin
Quadriceps tendon into patella, then via ligamentum patellae into tubercle of tibia
vastus medialis insertion
Femoral nerve
vastus medialis nerve supply
Extension of leg at knee joint; stabilizes patella
vastus medialis action
Anterior and lateral surfaces of shaft of femur
vastus intermedius origin
Quadriceps tendon into patella, then via ligamentum patellae into tubercle of tibia
vastus intermedius insertion
Femoral nerve
vastus intermedius nerve supply
Extension of leg at knee joint; articularis genus retracts synovial membrane
vastus intermedius action
Inferior ramus of pubis, ramus of ischium
gracilis origin
Upper part of shaft of tibia on medial surface
gracilis insertion
Obturator nerve
gracilis nerve supply
Adducts thigh at hip joint; flexes leg at knee joint
gracilis action
Body of pubis, medial to pubic tubercle
adductor longus origin
Posterior surface of shaft of femur (linea aspera)
adductor longus insertion
Obturator nerve
adductor longus nerve supply
Adducts thigh at hip joint and assists in lateral rotation
adductor longus action
Inferior ramus of pubis
adductor brevis origin
Posterior surface of shaft of femur (linea aspera)
adductor brevis insertion
Obturator nerve
adductor brevis nerve supply
Adducts thigh at hip joint and assists in lateral rotation
adductor brevis action
Inferior ramus of pubis, ramus of ischium, ischial tuberosity
adductor magnus origin
Posterior surface of shaft of femur, adductor tubercle of femur
adductor magnus insertion
Adductor portion: obturator nerve Hamstring portion: sciatic nerve
adductor magnus nerve supply
Adducts thigh at hip joint and assists in lateral rotation; hamstring portion extends thigh at hip joint
adductor magnus action
Outer surface of obturator membrane and pubic and ischial rami
obturator externus origin
Medial surface of greater trochanter
obturator externus insertion
Obturator nerve
obturator externus nerve supply
Laterally rotates thigh at hip joint
obturator externus action
Long head: ischial tuberosity
biceps femoris long head origin
Short head: linea aspera, lateral supracondylar ridge of shaft of femur
biceps femoris short head origin
Head of fibula
biceps femoris insertion
Long head: tibial portion of sciatic nerve
biceps femoris long head nerve supply
Short head: common peroneal portion of sciatic nerve
biceps femoris short head nerve supply
Flexes and laterally rotates leg at knee joint; long head also extends thigh at hip joint
biceps femoris action
Ischial tuberosity
semitendinosus origin
Upper part of medial surface of shaft of tibia
semitendinosus insertion
Tibial portion of sciatic nerve
semitendinosus nerve supply
Flexes and medially rotates leg at knee joint; extends thigh at hip joint
semitendinosus action
Ischial tuberosity
semimembranosus origin
Medial condyle of tibia
semimembranosus insertion
Note
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