Twelve Cranial Nerves Pneumonics NAME S/M/B I olfactory oh some II optic oh say III oculomotor oh marry IV trochlear to money V trigeminal touch but VI abducens and my VII facial feel brother VIII vestibulocochlear very says IX glossopharyngeal good big X vagus veggies brains XI accessory a mean XII hypoglossal h more 1 THE TRIGEMINAL NERVE 1. The trigeminal nerve has 3 major divisions: name them. a. _____________________________________ b. _____________________________________ c. _____________________________________ 2. Which divisions are purely sensory? a. _____________________________________ b. _____________________________________ 3. Which division is sensory and motor? a. _____________________________________ 4. Foramen V1: __________________________________ 5. List the three major branches of V1: a. ________________________________________ b. ________________________________________ c. ________________________________________ Which two nerves come together to form the frontal branch? o ________________________________ o ________________________________ Which branch relays parasympathetic innervations to the lacrimal gland to produce tears? o ________________________________ Which branch supplies the nasal cavity and paranasal sinuses? o _________________________________ 6. Foramen V2: _________________________________________ 2 7. List the seven major branches of V2: a. ________________________________________ b. ________________________________________ c. ________________________________________ d. ________________________________________ e. ________________________________________ f. ________________________________________ g. ________________________________________ 8. Which nerves join with the infraorbital nerve? a. ___________________________ b. ___________________________ c. ___________________________ This nerve is considered terminal branch of the V2 division. 9. The ASA nerve supplies these teeth and facial tissues: o _________________________________ o _________________________________ o _________________________________ What happens if this nerve crosses the midline? 10. The MSA nerve supplies these teeth / roots and buccal tissues: o _________________________________ o _________________________________ o _________________________________ Is this nerve always present? What happens if it is not present? 11. The PSA nerve supplies these teeth / roots, max. sinuses, and buccal tissues: o ___________________________________ o ___________________________________ o ___________________________________ o ___________________________________ 12. The _______________________ nerve splits to form the greater and lesser palatine nerves. These nerves name their associated foramen. The greater palatine is associated with the post. ____________ palate. The lesser palatine is associated with the _____________ palate. 3 13. The anterior hard palate is innervated by the ____________________________________ nerve that runs through the ____________________________________ foramen. 14.Foramen V3: ___________________________________ 15.V3 is divided into two trunks: a. _____________________________ b. _____________________________ 16. The anterior trunk consist of: a. _____________________________ b. _____________________________ The buccal nerve innervates: The muscular nerves innervate: 17. The posterior trunk consist of: a. ______________________________ b. ______________________________ c. ______________________________ (hint: c is formed by the union of two smaller branches) d. ______________________________ (hint: this is another branch of the inferior alverolar) The auriculotemporal nerve innervates: The lingual nerve innervates: 4 The inferior alveolar nerve innervates the _______________________ teeth. It is formed by the union of these two nerves. a. _________________________ b. _________________________ o The mental nerve innervates: o The incisive nerve innervates: The mylohyoid nerve innervates: 18. Be sure to concentrate on VII, IX, X, and XI .. they too are important to the dental professional! Lord, please help. Amen 5