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MuscleOrigin and InsertionAction
Biceps Femoris (O) Ischial tuberosity; linea aspera and distal posterior femur (I) Lateral surface of head of fibula and lateral condyle of tibia Extends thigh and flexes leg
Gastrocenemius (O) Medial and lateral condyles of femur (I) Calcaneus Flexes leg; plantar flexion
Gluteus Maximus (O) Dorsal ilium, sacrum, and coccyx (I) Gluteal tuberosity; iliotibial tract Extends and laterally rotates thigh
Gluteus Medius (O) Outer surface of ilium (I) Lateral aspect of greater trochanter Abducts and medially rotates thigh
Gluteus Minimus (O) Outer surface of ilium (I) Anterior border of greater trochanter Abducts and medially rotates thigh
Gracilis (O) Pubic symphysis and arch (I) Medial surface of tibia below medial condyle Adducts thigh
Iliacus (O) Iliac crest and fossa (I) Lesser trochanter Flexes thigh and trunk
Pectineus (O) Superior ramis of pubis (I) Posterior surface of femur; inferior to lesser trochanter Adducts; flexes and medially rotates thigh
Fibularis Longus (O) Head and upper portion of fibula (I) Ventral surface of metatarsal 1 and medial cuneiform Plantar flexion; eversion
Psoas (O) transverse process and bodies of vertebrae T12-C5 (I) Lesser trochanter Flexes thigh and trunk
Quadratus Lumborum (O) Iliac crest and ilioumbar fascia (I) Transverse provess of upper lumbar vertebrae and lower margin of 12th rib Laterally flexes trunk; maintains upright posture
Rectus Femoris (O) Anterior inferior iliac spine; superior margin of acetabulum (I) Extends leg; Flexes thigh
Sartorius (O) Anterior superior iliac spine (I) Proximal tibia below tuberosity Flexes leg and laterally rotates thigh
Semimembranousus (O) Ischial tuberosity (I) Medial surface of upper tibial shaft Extends thigh and flexes leg
Semitendinosus (O) Ischial tuberosity (I) Medial surfave of upper tibial shaft Extends thigh and flexes leg
Soleus (O) Posterior surface of superior tibia, fibula, and interosseous membrane (I) Calcaneus Plantar flexion
Tensor Fasciae Latae (O) Anterior iliac crest and superior iliac spine (I) Iliotibial tract Tenses fascia lata
Tibialis Anterior (O) Lateral condyle and upper 2/3 of anterior tibia shaft; interosseous membrane (I) Inferior surface of medial cuneform and metatarsal Dorsiflexion Inversion
Vastus Intermedius (O) Anterior and lateral surface of proximal femur shaft (I) Tibial tuberosity Extends leg
Vastus Lateralis (O) Greater trochanter; intertrochanteric line; linea aspera (I) Tibial tuberosity Extends leg
Vastus medialis (O) Linea aspera; intertrochanteric line (I) Tibial tuberosity Extends leg
Adductor Longus (O) Pubic crest and symphysis (I) Linea Aspera Flexes and laterally rotates thigh
Created by: RachReile