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Muscle Origin and Insertion in Anatomy & Physiology

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  • Origin of Sartorius

    The origin of the sartorius muscle is the anterior superior iliac spine of the pelvic bone.
  • Insertion of Sartorius

    The insertion of the sartorius muscle is the medial surface of the tibia in the pes anserinus region.
  • Origin of Rectus Femoris

    The rectus femoris originates from the anterior inferior iliac spine and the superior margin of the acetabulum.
  • Insertion of Rectus Femoris

    It inserts into the patella via the quadriceps tendon and continues to the tibial tuberosity via the patellar ligament.
  • Origin of Tibialis Anterior

    The tibialis anterior originates from the lateral condyle and upper two-thirds of the lateral surface of the tibia.
  • Insertion of Tibialis Anterior

    It inserts on the medial cuneiform and the base of the first metatarsal bone of the foot.
  • Origin of Trapezius

    The trapezius muscle originates from the occipital bone, ligamentum nuchae, and the spinous processes of C7 to T12 vertebrae.
  • Insertion of Trapezius

    It inserts on the lateral third of the clavicle, acromion, and spine of the scapula.
  • Origin of Latissimus Dorsi

    The latissimus dorsi originates from the spinous processes of T7 to L5, thoracolumbar fascia, iliac crest, and lower ribs.
  • Insertion of Latissimus Dorsi

    It inserts into the intertubercular groove of the humerus.
  • Origin of Triceps Brachii

    The triceps brachii has three heads: long head from the infraglenoid tubercle, lateral head from the posterior humerus, and medial head from the posterior humerus below the radial groove.
  • Insertion of Triceps Brachii

    All heads insert on the olecranon process of the ulna.
  • Origin of Extensor Digitorum

    The extensor digitorum originates from the lateral epicondyle of the humerus.
  • Insertion of Extensor Digitorum

    It inserts into the extensor expansions of digits 2 to 5.
  • Origin of Biceps Femoris

    The biceps femoris long head originates from the ischial tuberosity; the short head originates from the linea aspera of the femur.
  • Insertion of Biceps Femoris

    It inserts on the head of the fibula and lateral condyle of the tibia.
  • Origin of Gluteus Maximus

    The gluteus maximus originates from the posterior ilium, sacrum, and coccyx.
  • Insertion of Gluteus Maximus

    It inserts on the iliotibial tract and the gluteal tuberosity of the femur.
  • Origin of Gastrocnemius

    The gastrocnemius has two heads originating from the medial and lateral condyles of the femur.
  • Insertion of Gastrocnemius

    It inserts into the posterior surface of the calcaneus via the Achilles tendon.