12 cranial nerves
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12 cranial nerves

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complete version. by dr. fabie :)

complete version. by dr. fabie :)

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  • Full Name Full Name Comment goes here.
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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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  • Good for students. Thank u, dr. fabie
    I find some info in http://www.gwc.maricopa.edu/class/bio201/cn/cranial.htm and http://12cranialnerves.net/
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12 cranial nerves Presentation Transcript

  • 1. By: Dr. Pamela Josefina T. Fabie
  • 2. Cranial Nerve I
  • 3.  Component: Sensory Function: Smell Origin: Olfactory receptor nerve cells Opening to the Skull: Openings in cribriform plate of ethmoid
  • 4. Cranial Nerve II
  • 5.  Component: Sensory Function: Vision Origin: Back of the eyeball Opening to the Skull: Optic Canal
  • 6. Cranial Nerve III
  • 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. Cranial Nerve IV
  • 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. Cranial Nerve V
  • 11. V. Trigeminal Nerve
  • 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. Infratrochlear
  • 14. V1. Ophthalmic Nerve
  • 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. V2. Maxillary Nerve
  • 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. • 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. V3. Mandibular Nerve
  • 20. Cranial Nerve VI
  • 21.  Component: Motor Function: Lateral rectus muscle turns eyeball laterally Origin: Medulla oblongata Opening to the Skull: Superior orbital fissure
  • 22. VI. Abducent Nerve
  • 23. Cranial Nerve VII
  • 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.  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. VII. Facial Nerve
  • 27. Cranial Nerve VIII
  • 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. VIII. Vestibulocochlear Nerve
  • 30. Cranial Nerve IX
  • 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.  Origin: Medulla oblongata Opening to the Skull: Jugular foramen
  • 33. IX. Glossopharyngeal Nerve
  • 34. Cranial Nerve X
  • 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. X. Vagus Nerve
  • 37. Cranial Nerve XI
  • 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. Cranial Nerve XII
  • 40.  Component: Motor Function: Muscles of tongue (except palatoglossus controlling its shape and movement) Origin: Medulla oblongata Opening to the Skull: Hypoglossal canal
  • 41. END