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Hip/thigh/leg
BIOL131
Muscle | Origin and Insertion | Action |
---|---|---|
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 |