Anterior thigh muscles

• Muscles of anterior thigh

  • Flexors of hip joint
  • Extensors of knee
• Muscles of medial thigh

  • Adductors of thigh
• Pectineus


  A flat quadrangular muscle located in the anterior part of the superomedial aspect of the thigh, often appears to be composed of two layers, superficial and deep
• Muscles of the anterior compartment of the thigh

  • Pectineus
  • Iliopsoas
  • Sartorius
  • Quadriceps femoris
• Quadriceps femoris


  The great extensor of the leg, consists of four parts: rectus femoris, vastus lateralis, vastus intermedius, and vastus medialis
• Quadriceps femoris


  • It is the largest and one of the most powerful muscles in the body, covering almost all the anterior aspect and sides of the femur
  • It is a two-joint muscle capable of producing action at both the hip and knee

  
• Rectus femoris


  The only part of the quadriceps that crosses the hip joint, acts as a hip flexor and knee extensor
• Vastus muscles


  • Vastus lateralis is the largest component, vastus medialis covers the medial side, vastus intermedius lies deep to the rectus femoris
• Anterior Compartment of Thigh

  • Includes the flexors of the hip and extensors of the knee, with most muscles innervated by the femoral nerve
  • The quadriceps femoris accounts for most of the mass of this compartment
  • Major muscles of this compartment atrophy rapidly with disease or disuse, requiring physical therapy to retain or restore function
• Anterior compartment of thigh

  • Includes the flexors of the hip and extensors of the knee, with most muscles innervated by the femoral nerve
  • The quadriceps femoris accounts for most of the mass of this compartment
  • It surrounds the femur on three sides and has a common tendon of attachment to the tibia, which includes the patella as a sesamoid bone
  • Major muscles of this compartment atrophy rapidly with disease or disuse, requiring physical therapy to retain or restore function
• Rectus femoris


  • Part of the quadriceps muscle group
  • Attaches to the tuberosity of the tibia
• Quadriceps


  • Attaches to the tuberosity of the tibia
• Anterior lateral part of the thigh


  • Also a safe site for IM injections, where the needle enters the tensor fasciae latae as it extends distally from the iliac crest and ASIS
• • Rectus femoris, direct head
  • Anterior inferior iliac spine
  • Anterior superior iliac spine