Rectus Femoris - Origin
AIIS (anterior inferior iliac spine)
Rectus Femoris - Insertion
Patella
Rectus Femoris - Action
Extends leg at knee & flexes thigh at hip
Rectus Femoris - Innervation
Femoral nerve
Vastus Lateralis - Origin
Greater trochanter & linea aspera
Vastus Lateralis - Insertion
Patella
Vastus Lateralis - Action
Extends leg at knee
Vastus Lateralis - Innervation
Femoral nerve
Vastus Medialis - Origin
Linea aspera
Vastus Medialis - Insertion
Patella
Vastus Medialis - Action
Extends leg at knee
Vastus Medialis - Innervation
Femoral nerve
Vastus Intermedius - Origin
Anterior & lateral surfaces of the femur
Vastus Intermedius - Insertion
Patella
Vastus Intermedius - Action
Extends leg at knee
Vastus Intermedius - Innervation
Femoral nerve
Sartorius - Origin
AIIS (anterior inferior iliac spine)
Sartorius - Insertion
Proximal medial surface of the tibia
Sartorius - Action
Flexes, abducts, & laterally rotates thigh at hip; flexes leg at knee
Sartorius - Innervation
Femoral nerve
Gracilis - Origin
Pubis
Gracilis - Insertion
Medial surface of the tibia
Gracilis - Action
Adducts thigh & flexes leg at knee
Gracilis - Innervation
Obturator nerve
Adductor Longus - Origin
Pubis
Adductor Longus - Insertion
Linea Aspera
Adductor Longus - Action
Adduction & flexion of thigh
Adductor Longus - Innervation
Obturator nerve
Adductor Brevis - Origin
Pubis
Adductor Brevis - Insertion
Linea aspera
Adductor Brevis - Action
Adduction of the thigh
Adductor Brevis - Innervation
Obturator nerve
Adductor Magnus - Origin
Pubis & ischial tuberosity
Adductor Magnus - Insertion
Linea aspera
Adductor Magnus - Action
Adduction of thigh, extension of leg, & flexion of leg
Adductor Magnus - Innervation
Obturator & tibial nerves
Pectineus - Origin
Pubis
Pectineus - Insertion
Lesser trochanter
Pectineus - Action
Adduction & flexion of the thigh
Pectineus - Innervation
Femoral nerve
Iliopsoas
A convergence of the iliacus & psoas major muscles
Iliacus - Origin
Medial surface of the ilium
Iliacus - Insertion
Lesser trochanter
Iliacus - Action
Flexion of thigh at hip & flexion of trunk at hip
Iliacus - Innervation
Femoral nerve
Psoas Major - Origin
Vertebrae T12-L5
Psoas Major - Insertion
Lesser trochanter
Psoas Major - Action
Flexion of the thigh & trunk
Psoas Major - Innervation
Anterior rami of lumbar spinal nerves (L2-3)
Semitendinosus - Origin
Ischial tuberosity
Semitendinosus - Insertion
Proximal medial surface of the tibia
Semitendinosus - Action
Flexion of leg at knee, medial rotation of leg, & extension of thigh
Semitendinosus - Innervation
Tibial nerve
Semimembranosus - Origin
Ischial tuberosity
Semimembranosus - Insertion
Posterior medial condyle of the tibia
Semimembranosus - Action
Flexion of leg at knee, medial rotation of leg, & extension of thigh
Semimembranosus - Innervation
Tibial nerve
Biceps Femoris (Long Head) - Origin
Ischial tuberosity
Biceps Femoris (Long Head) - Insertion
Head of the fibula & lateral condyle of the tibia
Biceps Femoris (Long Head) - Action
Flexion of knee, lateral rotation of leg, & extension of thigh
Biceps Femoris (Long Head) - Innervation
Tibial & common fibular nerves
Biceps Femoris (Short Head) - Origin
Linea aspera
Biceps Femoris (Short Head) - Insertion
Head of the fibula & lateral condyle of the tibia
Biceps Femoris (Short Head) - Action
Flexion at knee, lateral rotation of leg, & extension of thigh
Biceps Femoris (Short Head) - Innervation
Tibial & common fibular nerves
Tensor Fasciae Latae - Origin
Iliac crest
Tensor Fasciae Latae - Insertion
Iliotibial band
Tensor Fasciae Latae - Action
Abduction & medial rotation of the thigh, flexion at the hip, & extension at the knee
Tensor Fasciae Latae - Innervation
Superior gluteal nerve
Iliotibial Band
The tendon of the tensor fasciae latae muscle
Iliotibial Band - Insertion
Lateral tibia
Gluteus Maximus - Origin
Sacrum, coccyx, & posterior iliac crest
Gluteus Maximus - Insertion
Greater trochanter & iliotibial band
Gluteus Maximus - Action
Extension & lateral rotation at the hip
Gluteus Maximus - Innervation
Inferior gluteal nerve
Gluteus Medius - Origin
Lateral surface of the ilium
Gluteus Medius - Insertion
Greater trochanter
Gluteus Medius - Action
Abduction & medial rotation of the thigh
Gluteus Medius - Innervation
Superior gluteal nerve
Gluteus Minimus - Origin
Lateral surface of the ilium
Gluteus Minimus - Insertion
Greater trochanter
Gluteus Minimus - Action
Abduction & medial rotation of the thigh
Gluteus Minimus - Innervation
Superior gluteal nerve
Piriformis - Origin
Anterior surface of the sacrum
Piriformis - Insertion
Greater trochanter
Piriformis - Action
Lateral rotation of the thigh
Piriformis - Innervation
Spinal nerves L5-S1
Superior Gemellus - Origin
Ischial spine
Superior Gemellus - Insertion
Greater trochanter
Superior Gemellus - Action
Lateral rotation of the hip
Superior Gemellus - Innervation
Obturator nerve
Obturator Internus - Origin
Obturator foramen
Obturator Internus - Insertion
Greater trochanter
Obturator Internus - Action
Lateral rotation of the hip
Obturator Internus - Innervation
Obturator nerve