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Adductor Brevis Anatomy: Origin, Insertion, Action, Innervation

Adductor Brevis Anatomy

Adductor Brevis Muscle

Origin: Inferior ramus and body of the pubis
Insertion: Along a line from the lesser trochanter to the linea aspera, the upper third of the linea aspera, downward along the upper the upper third of the linea aspera, immediately behind pectineus and the upper part of adductor longus.
Actions: Adduction of the thigh
Innervation: Anterior division of the obturator nerve (L2. L3)
Blood Supply: Femoral artery

Primary Actions of the Adduction Brevis

1. Adduction of the thigh at the hip

Agonists:

  • Adductor magnus (anterior part)
  • Adductor longus

Antagonists:

  • Gluteus maximus (upper fibers)
  • Gluteus medius
  • Gluteus minimus

Gracilis and pectineus assist with adduction of the thigh at the hip

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Secondary Actions of the Adductor Brevis

1. Assists with internal rotation of the thigh at the hip
Agonists:

  • Tensor fasciae latae
  • Gluteus mimimus (anterior fibers)
  • Gluteus medius (anterior fibers)

Antagonists:

  • Obturator internus
  • Obturator externus
  • Gemellus superior
  • Gemellus inferior
  • Quadratus femoris

Adductor longus and adductor magnus assist with internal rotation of the thigh at the hip.