12 cranial nerves

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complete version. by dr. fabie :)

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  • thanks !
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  • @Isaac Hussein thank you very much i noticed that too
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  • also slide number 26 Abducens nerve leaves the inferior Pons and not the Medulla Oblangata... if you look at the ventral aspect of the brain cranial nerve number VI is at the Pons and not Medulla Oblangata
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  • only problem is the 22nd slide... mandibular branch of Trigeminal nerve opens to the skull at the foramen Ovale not Rotundum. Rotundum is the opening for the V2 - Maxillary branch of the trigeminal nerve
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  • thanx
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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  Mucous 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: Sensoryo Function: o Skin of the face over maxilla o Teeth of the upper jaw o Mucous membrane of the nose, the maxillary sinus and palateo Origin: Anterior aspect of the ponso Opening to the Skull: Foramen ovale
  16. 16. V2. Maxillary Nerve
  17. 17. o Component: a. Motoro Function: o Muscles of mastication o Mylohyoid o Anterior belly of digastric o Tensor veli palatine o Tensor tympanio Origin: Anterior aspect of the ponso 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: Medulla oblongata Opening to the Skull: Superior orbital fissure
  22. 22. VI. Abducent Nerve
  23. 23. Cranial Nerve VII
  24. 24.  Component: Mixed Function:Motor • muscles of the face and scalp • Stapedius muscle • Posterior belly of digastric • Stylohyoid muscles Function:Sensory • Taste from ant. 2/3 of tongue, from the floor of the mouth and palate
  25. 25.  Function:Secretomotor • Submandibular and sublingual salivary glands • Lacrimal gland • Glands of nose and palate Origin: Medulla oblongata Opening to the Skull: internal acoustic meatus, facial canal, stylomastoid foramen
  26. 26. VII. Facial Nerve
  27. 27. Cranial Nerve VIII
  28. 28. o Component: Sensoryo Function: o Vestibular - Saculae, saccule, semicircular canals – position of head o Cochlear – Organ of Corti - hearingo Origin: Medulla oblongatao Opening to the Skull: Internal acoustic meatus
  29. 29. VIII. Vestibulocochlear Nerve
  30. 30. Cranial Nerve IX
  31. 31.  Component: Mixed  Function: Function: • Sensory • Motor • General sensation and • Stylopharyngeus taste from post. ½ of the muscle – assists tongue and pharynx swallowing • Carotis sinus and carotid body  Function: • Secretomotor • Parotid gland
  32. 32.  Origin: Medulla oblongata Opening to the Skull: Jugular foramen
  33. 33. IX. Glossopharyngeal Nerve
  34. 34. Cranial Nerve X
  35. 35.  Component: Motor Function: Heart and great thoracic blood vessels Larynx, trachea, bronchi and lungs Alimentary tract from pharynx to splenic flexure of colon Liver, kidney, pancreas Origin: Medulla oblongata Opening to the Skull: Jugular foramen
  36. 36. X. Vagus Nerve
  37. 37. Cranial Nerve XI
  38. 38.  Component: Motor Function: Cranial root Muscles of soft palate (except tensor veli palatini) Muscles pharynx (except styopharyngeus) Muscles of larynx (except cricothyroid) Spinal root Sternocleidomastoid and trapezius muscle Origin: medulla oblongata Opening to the Skull: Jugular foramen
  39. 39. Cranial Nerve XII
  40. 40.  Component: Motor Function: Muscles of tongue (except palatoglossus controlling its shape and movement) Origin: Medulla oblongata Opening to the Skull: Hypoglossal canal
  41. 41. END

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