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The Hip, Thigh, and Leg Muscles

The Hip, Thigh, and Leg Muscles. The Anterior Surface. The anterior surface of the hip, thigh, and leg muscles:. Iliopsoas. Origin: lumbar vertebrae Insertion: Femur (lesser trochanter ) Primary action: Flexes the hip. Adductor Muscles. Origin: Pelvis Insertion: Proximal Femur

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The Hip, Thigh, and Leg Muscles

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  1. The Hip, Thigh, and Leg Muscles

  2. The Anterior Surface • The anterior surface of the hip, thigh, and leg muscles:

  3. Iliopsoas • Origin: lumbar vertebrae • Insertion: Femur (lesser trochanter) • Primary action: Flexes the hip

  4. Adductor Muscles • Origin: Pelvis • Insertion: Proximal Femur • Primary Action: Adduct Thigh

  5. Sartorius • Origin: Illium • Insertion: Proximal Tibia • Primary Action: Flexes Thigh on Hip

  6. Quadriceps Group • vastusmedialis, intermedius, and lateralis; and the rectus femoris • Origin: Vasti: Femur • Insertion: Tibialtuberosity via patellar ligament • Primary Actions: All extend knee; rectus femoris also flexes hip on thigh

  7. Tibialis Anterior • Origin: Proximal Tibia • Insertion: First cuneiform (tarsal) and first metatarsal of foot • Primary Actions: Dorsiflexes and inverts foot

  8. Extensor DigitorumLongus • Origin: Proximal tibia and radius • Insertion: Distal toes 2-5 • Primary Actions: Extends toes and dorsiflexes foot

  9. Fibularis Muscles • Origin: Fibula • Insertion: Metatarsals of foot • Primary Actions: Plantar flex and evert foot

  10. The Posterior Surface The posterior surface of the hip, thigh, and leg muscles:

  11. The Gluteus Maximus • Extends the hip (when forceful extension is required) • It is a broad and thick fleshy mass of a quadrilateral shape • the biggest out of the 3 gluteal muscles. • makes up a large portion of the shape and appearance of the buttocks

  12. The Gluteus Medius • abducts thigh; steadies pelvis during walking • one of the three gluteal muscles • is a broad, thick, radiating muscle, situated on the outer surface of the pelvis.

  13. Hamstring Muscles • flex knee and extends hip • made up of 3 muscles: the semitendinosus, semimembranosus, and the biceps femoris • the hamstring refers to one of the three posterior thigh muscles, or to the tendons that make up the borders of the space behind the knee

  14. Gastrocnemius • plantar flexes foot and flexes knee • another word for “calf” • runs from just above the knee to the heel • it is involved in standing, walking, running and jumping.

  15. Soleus • plantar flexes the foot • in the back part of the lower leg (the calf) • It runs from just below the knee to the heel • it is involved in standing and walking • closely connected to the gastrocnemius muscle

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