Head and Neck Muscles

  1. splenus capitis
    extends, rotates, and laterally flexes neck
  2. sternocleidomastoid
    one contracting alone: laterally flexes head and neck to same side and rotates head and neck to opposite side

    both contracting together: flex neck
  3. scalenes
    flex, laterally flex, and rotate neck
  4. trapezius
    • extends and laterally flexes
    • elevates, depresses, retracts, rotates, and fixes scapula
    • extends neck
  5. levator scapulae
    • elevates, retracts, and rotates scapula
    • laterally flexes neck
  6. occipitofrontalis
    • moves scalp
    • elevates eyebrows
  7. orbicularis oculi
    closes eyes
  8. orbicularis oris
    closes lips
  9. platysma
    • depresses lower lip
    • wrinkles skin of neck and upper chest
  10. zygomaticus major AND minor
    elevates and abducts upper lip
  11. temporalis
    • elevates and retracts mandible
    • involved in excursion (moving from side to side)
  12. masseter
    • elevates and protracts mandible
    • involved in excursion
  13. lateral pterygoid
    • protracts and depresses mandible
    • involved in excursion
  14. medial pterygoid
    • protracts and elevates mandible
    • involved in excursion
  15. digastric (posterior and anterior belly)
    • depresses and retracts mandible
    • elevates hyoid
  16. buccinator
    • retracts angle of mouth
    • flattens cheek
  17. sternothyroid
    • depresses larynx
    • fixes hyoid in mandibular depression
  18. risorius
    abducts angle of mouth
  19. sternohyoid AND omohyoid AND thyrohyoid
    • depresses hyoid
    • fixes hyoid in mandibular depression
  20. stylohyoid
    elevates hyoid
  21. mylohyoid
    • elevates floor of mouth and tongue
    • depresses mandible when hyoid is fixed
  22. thyrohyoid
    elevates thyroid cartilage of larynx
  23. geniohyoid
    • protracts hyoid
    • depresses mandible
  24. genioglossus
    depresses and protrudes tongue
  25. hyoglossus
    retracts and depresses side of tongue
  26. styloglossus
    retracts tongue
Card Set
Head and Neck Muscles
specific type of movement and what it moves for each muscle