12 cranial nerves

ppt from dr. fabie :)

1. 12 CRANIAL NERVES By: Dr. Pamela Josefina T. Fabie

2. OLFACTORY NERVE Cranial Nerve I

3. I. Olfactory Nerve Component: Sensory Function: Smell Opening to the Skull: Openings in cribriform plate of ethmoid O rigin: Olfactory receptor nerve cells

4. Olfactory Nerve

5. OPTIC NERVE Cranial Nerve II

6. II. Optic Nerve Component: Sensory Function: Vision Opening to the Skull: Optic Canal Origin: Back of the eyeball

7. II. Optic Nerve

8. OCCULOMOTOR NERVE Cranial Nerve III

9. III. Occulomotor Nerve Component: Motor Function: Raises upper eyelid Turns eyeball upward, downward and medially Constricts pupil Accommodates the eye Opening to the Skull: Superior orbital fissure Origin: Anterior surface of the midbrain

10. III. Occulomotor Nerve

11. TROCHLEAR NERVE Cranial Nerve IV

12. IV. Trochlear Nerve Component: Motor Function: Assisting in turning eyeball downward and laterally Opening to the Skull: Superior orbital fissure Origin: Posterior surface of the midbrain

13. IV. Trochlear Nerve

14. TRIGEMINAL NERVE Cranial Nerve V V1. Ophthalmic Nerve V2. Maxillary Nerve V3. Mandibular Nerve

15. V. Trigeminal Nerve

16. V1. Ophthalmic Nerve Component: Sensory Function: Cornea Skin of forehead Scalp Eyelids and nose Mucuos membranes of paranasal sinuses and nasal cavity Opening to the Skull: Superior orbital fissure Origin: Anterior aspect of the pons

17. V1. Ophthalmic Nerve Infratrochlear

18. V1. Ophthalmic Nerve

19. V2. Maxillary Nerve Component: Sensory Function: Skin of the face over maxilla Teeth of the upper jaw Mucous membrane of the nose, the maxillary sinus and palate Opening to the Skull: Foramen ovale Origin: Anterior aspect of the pons

20. V2. Maxillary Nerve

21. V3. Mandibular Nerve Component: a. Motor Function: Muscles of mastication Mylohyoid Anterior belly of digastric Tensor veli palatine Tensor tympani Opening to the Skull: Foramen Rotundum Origin: Anterior aspect of the pons

22. V3. Mandibular Nerve 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 Opening to the Skull: Foramen Rotundum Origin: Anterior aspect of the pons

23. V3. Mandibular Nerve

24. ABDUCENT NERVE Cranial Nerve V I

25. VI. Abducent Nerve Component: Motor Function: Lateral rectus muscle turns eyeball laterally Opening to the Skull: Superior orbital fissure Origin: Anterior Surface of hindbrain between pons and medulla

26. VI. Abducent Nerve