Hip flexors

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The iliacus and nearby muscles

Iliac colon, sigmoid or pelvic colon, and rectum seen from the front, after removal of pubic bones and bladder. (Ilio-psoas labeled at center right.)

In human anatomy, the hip flexors are a group of muscles (including the iliopsoas which passes through the pelvis) that act to flex the femur onto the lumbo-pelvic complex.

The hip flexors are considered to be the most important muscle in the running process.

The hip flexors include:

• Collectively known as the Iliopsoas:
  • Psoas major muscle
  • Psoas minor muscle
  • Iliacus muscle

• Part of the Quadriceps:
  • Rectus femoris muscle

• Anterior compartment of thigh
  • Sartorius muscle

• Medial compartment of thigh
  • Pectineus muscle
  • Adductor longus muscle
  • Adductor brevis muscle

• Tensor fasciae latae