1. Origin- Pectoralis Major
    clavicle, sternum and costal cartilages of upper ribs
  2. Insertion- Pectoralis Major
    intertubicular groove of humerus
  3. Action- Pectoralis Major
    pulls arm anteriorly and across chest, rotates humerus or adducts arm
  4. Origin- Deltoid
    acromion process, spine of scapula and clavicle
  5. Insertion- Deltoid
    deltoid tuberosity of humerus
  6. Action- Deltoid
    abducts the arm, extends or flexes
  7. Origin- Biceps Brachii
    coracoid process and tubercle above glenoid cavity of scapula
  8. Insertion- Biceps Brachii
    radial tuberosity of radius
  9. Action- Biceps Brachii
    flexes forearm at elbow and rotates arm laterally
  10. Origin- Rectus Abdominus
    crest of symphasis pubis and pubis
  11. Insertion- Rectus Abdominus
    xiphoid process of sternum and costal cartilages of ribs
  12. Action- Rectus Abdominus
    tenses abdominal wall and compresses abdominal contents; also flexes
  13. Origin- Sartorius
    anterior illiac spine
  14. Insertion- Sartorius
    medial surface of tibia
  15. Action- Sartorius
    flexes leg and thigh, abducts thigh, rotates thigh laterally and medially
  16. Origin- Tibialis Anterior
    lateral condyle and lateral surface of tibia
  17. Insertion- Tibialis Anterior
    tarsal bone and 1st metatarsal
  18. Action- Tibialis Anterior
    dorsiflexion and inversion of foot
  19. Origin- Frontalis
    galea aponuerotica
  20. Insertion- Frontalis
    skin of eyebrows and root of nose
  21. Action- Frontalis
    raises eyebrows, wrinkles forehead
  22. Origin- Masseter
    lower border of zygomatic arch
  23. Insertion- Masseter
    lateral surfaces of the mandible
  24. Action- Masseter
    closes jaw
  25. Origin- Sternoceidomastoid
    anterior surface of sternum and upper surface of clavicle
  26. Insertion- Sternoceidomastoid
    mastoid process of temporal bone
  27. Action- Sternoceidomastoid
    pulls head to one side, pulls head toward chest or raises sternum
  28. Origin- External Oblique
    outer surface of lower ribs
  29. Insertion- External Oblique
    outer lip of illiac crest, linea alba
  30. Action- External Oblique
    tenses abdominal wall and compresses contents
  31. Origin- Rectus Femoris
    spine of illium and margin of acetabulum
  32. Insertion- Rectus Femoris
    patella by tendon, continues as patellar ligament to tibial tuberosity of tibia
  33. Action- Rectus Femoris
    extends leg at knee
  34. Origin- Gluteus Maximus
    sacrum, coccyx and posterior surface of illium
  35. Insertion- Gluteus Maximus
    posterior surface of femur and fascia of thigh
  36. Action- Gluteus Maximus
    extends thigh
  37. Origin- Biceps Femoris
    ishial tuberosity and posterior surface of femur
  38. Insertion- Biceps Femoris
    head of fibula and lateral condyle of tibia
  39. Action- Biceps Femoris
    flexes leg, extends thigh
  40. Origin- Semitendinosus
    ishial tuberosity
  41. Insertion- Semitendinosus
    medial surface of tibia
  42. Action- Semitendinosus
    flexes leg, extends thigh
  43. Origin- Gastrochemius
    lateral and medial condyles of femur
  44. Insertion- Gastrochemius
    posterior surface of calcaneus
  45. Action- Gastrochemius
    plantar flexion of foot and fexion of leg at knee
  46. Origin- Trapezius
    occipital bone and spines of cervical and thoracic vertebrae
  47. Insertion- Trapezius
    clavicle; spine and acromion process of scapula
  48. Action- Trapezius
    rotate scapula and raises arm; raises scapula; pulls scapula medially/downward
  49. Origin- Triceps Brachii
    tuberce below glenoid cavity an scapula, lateral and medial surfaces of humerus
  50. Insertion- Triceps Brachii
    olecranon process of ulna
  51. Action- Triceps Brachii
    extends forearm at elbow
  52. Origin- Latissimus Dorsi
    spines of sacral, lumbar and thoracic vertebrae, illiac crest and lower ribs
  53. Insertion- Latissimus Dorsi
    intertubiclar groove of humerus
  54. Action- Latissimus Dorsi
    extends and adducts arm and rotates humerus inwardly, or pull shoulder downward
Card Set
origin, insertion, and action of selected muscles