Muscle Review Psoas Major O Lumbar Vert I

Muscle Review

Psoas Major • O: Lumbar Vert. • I: Femur • A: Flexes thigh

Iliacus • O: Ilium • I: Femur • A: Flexes Thigh

Gluteus Maximus • O: Sacrum, Coccyx, and ilium • I: Femur, Facia • A: Extends thigh

Gluteus Medius • O: Ilium • I: Femur • A: Abducts, rotates thigh medial

Adductor Longus • O: Pubic Bone • I: Posterior of Femur • A: Adducts thigh

Adductor Magnus • O: Ischium • I: Femur • A: Adducts thigh, rotates thigh laterally

Gracilis • O: Pubis • I: Tibia • A: Adducts thigh, rotates lower limb medially

Sartorius • O: Ilium • I: Tibia • A: Flexes leg, abducts thigh, rotates thigh laterally (Gum on shoe) • *Longest muscle

Biceps femoris • O: Ischium, femur • I: Tibia, fibula • A: Flexes leg, extends thigh • *1 of 3 Hamstring

Semitendinosus • O: Ischium • I: Tibia • A: Flexes Leg, extends thigh • *2 of 3 Hamstring

Semimembranosus* • O: Ischium • I: Tibia • A: flexes leg, extends thigh • *3 of 3 hamstring

Rectus Femoris * Quadriceps (¼) • O: Ilium • I: Patella leading to tibia • A: Extends leg at knee • *Antagonist of hamstrings

Vastus Lateralis (2/4) • O: Posterior of Femur • I: Patella leading to tibia • A: Extends leg at knee

Vastus Medialis (3/4) • O: Medial surface of Femur • I: Patella leading to tibia • A: Extends leg at knee

Vastus Intermedius* (4/4) • O: Anterior surface of the femur • I: Patella leading to tibia • A: Extends leg at knee

Tibialis Anterior • O: Lateral surface of tibia • I: Tarsal bones (cuneiform) 1 st metatarsal • A: Dorsiflexion and inversion of foot

Gastrocnemius • O: Femur • I: Posterior surface of the Calcaneus • A: Plantar flexion of foot, flex knee

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Soleus • O: Fibula and Tibia • I: Posterior surface of calcaneus • A: Plantar flexion of foot

Fibularis Longus • O: Tibia and Fibula • I: Tarsals and metatarsals • A: Plantar flexion, • * Extensor Digitorium