Biceps Femoris

Muscle Name: Biceps Femoris

Medical Name:

• Biceps Femoris

Other Names:

• None

Head:

• Long Head
• Short Head

Movement:

• Flexion of the knee
  • Bending the leg
• Extension of the hip (Long Head)
  • Moving the thigh backward
• Lateral rotation of the knee (when the knee is flexed)
  • Rotating the lower leg outward

Attachment:

• Origin:
  • Long Head: Ischial tuberosity
  • Short Head: Linea aspera and lateral supracondylar line of the femur
• Insertion:
  • Head of the fibula

Related Muscles:

• Semitendinosus
• Semimembranosus
• Quadriceps
• Gluteus Maximus
• Adductor Magnus
• Gastrocnemius

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