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12 cranial nerves

  1. 1. By: Dr. Pamela Josefina T. Fabie
  2. 2. Cranial Nerve I
  3. 3.  Component: Sensory  Function: Smell  Origin: Olfactory receptor nerve cells  Opening to the Skull: Openings in cribriform plate of ethmoid
  4. 4. Cranial Nerve II
  5. 5.  Component: Sensory  Function: Vision  Origin: Back of the eyeball  Opening to the Skull: Optic Canal
  6. 6. Cranial Nerve III
  7. 7.  Component: Motor  Function:  Raises upper eyelid  Turns eyeball upward, downward and medially  Constricts pupil  Accommodates the eye  Origin: Anterior surface of the midbrain  Opening to the Skull: Superior orbital fissure
  8. 8. Cranial Nerve IV
  9. 9.  Component: Motor  Function: Assisting in turning eyeball downward and laterally  Origin: Posterior surface of the midbrain  Opening to the Skull: Superior orbital fissure
  10. 10. Cranial Nerve V
  11. 11. V. Trigeminal Nerve
  12. 12.  Component: Sensory  Function:  Cornea  Skin of forehead  Scalp  Eyelids and nose  Mucuos membranes of paranasal sinuses and nasal cavity  Origin: Anterior aspect of the pons  Opening to the Skull: Superior orbital fissure
  13. 13. Infratrochlear
  14. 14. V1. Ophthalmic Nerve
  15. 15. o Component: Sensory o Function: o Skin of the face over maxilla o Teeth of the upper jaw o Mucous membrane of the nose, the maxillary sinus and palate o Origin: Anterior aspect of the pons o Opening to the Skull: Foramen ovale
  16. 16. V2. Maxillary Nerve
  17. 17. o Component: a. Motor o Function: o Muscles of mastication o Mylohyoid o Anterior belly of digastric o Tensor veli palatine o Tensor tympani o Origin: Anterior aspect of the pons o Opening to the Skull: Foramen Rotundum
  18. 18. • Component: b. Sensory • Function: • Skin of cheek • Skin over mandible and side of head • Teeth of lower jaw and TMJ • Mucous membrane of mouth and anterior part of tongue • Origin: Anterior aspect of the pons • Opening to the Skull: Foramen Rotundum
  19. 19. V3. Mandibular Nerve
  20. 20. Cranial Nerve VI
  21. 21.  Component: Motor  Function: Lateral rectus muscle turns eyeball laterally  Origin: Anterior Surface of hindbrain between pons and medulla  Opening to the Skull: Superior orbital fissure
  22. 22. VI. Abducent Nerve

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