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Cranial Nerves
CSDI 4440
| Question | Answer |
|---|---|
| What number nerve is the Olfactory Nerve? | I |
| What is the origin of the Olfactory nerve? | olfactory bulb |
| What is the function of the Olfactory nerve? | smell |
| What cranial nerves use SVA? | Olfactory, |
| What number nerve is the Optic Nerve? | II |
| What is the origin of the optic nerve? | Thalamus |
| What is the function of the optic nerve? | vision |
| What cranial nerves use SSA? | Optic, Vestibulocochlear |
| What number is the Oculomotor nerve? | III |
| What is the origin of the oculomotor and trochlear nerves? | midbrain |
| What fiber types does the oculomotor nerve use? | GSE, GVE |
| What is the function of the GSE in the Oculomotor nerve? | move eyes left and right; controls eyelid |
| What is the function of the GVE in the oculomotor nerve? | pupil constrictor |
| What number is the Trochlear nerve? | IV |
| What cranial nerves use GSE? | Trochlear, abducens, hypolgossal |
| What is the function of the trochlear nerve | moves eyes up and down |
| What number is the trigeminal nerve? | V |
| Which cranial nerves are most important for speech? | V, VII, VIII, IX, X, XII |
| What is the origin of the trigeminal, abducens, and facial nerves? | the pons |
| What fiber types does the trigeminal nerve use? | SVE and GSA |
| What is the function of the GSA in the Trigeminal nerve? | touch, pain, temp, and vibration for the face, mouth, anterior 2/3 of tongue |
| What is the function of the SVE in the trigeminal nerve? | chewing muscles |
| What number is the abducens nerve? | VI |
| What is the function of the abducens nerves? | rotates eyes out |
| What number is the Facial nerve? | VII |
| What fiber types does the facial nerve use? | SVE, GVE, GSA, SVA |
| What is the function of the SVE in the facial nerve? | muscles of the face |
| What is the function of the GSA in the facial nerve? | sensation near ears |
| What is the function of the SVA in the facial nerve? | Taste in anterior 2/3 of tongue |
| What is the function of the GVE in the facial nerve? | salivary glands |
| What number is the Vestibulocochlear nerve? | VIII |
| What is another name for the Vestibulocochlear nerve? | auditory nerve |
| What fiber does the Vestibulocochlear nerve use? | SSA |
| What is the origin of the vestibular and glossopharyngeal nerves? | Pons/medulla junction |
| What is the function of the vestibulocochlear nerve? | Hearing and balance |
| What number is the glossopharyngeal nerve? | IX |
| What fiber types does the glossopharyngeal nerve use? | SVE, GVE, GVA, SVA |
| What is the function of the SVE in the glossopharyngeal nerve? | Pharyngeal movement |
| What is the function of the GVE in the glossopharyngeal nerve? | parotid gland (salivation) |
| What is the function of the GVA in the glossopharyngeal nerve? | middle ear, pharynx, posterior 1.3 of the tongue |
| What is the function of the SVA in the glossopharyngeal nerve? | Taste on the posterior 1.3 of the tongue |
| What number is the vagus nerve? | X |
| What is the origin of the vagus and hypoglossal nerves? | medulla |
| What fiber types does the vagus nerve use? | SVE, GVE, GSA, GVA, SVA |
| What is the function of the SVE in the vagus nerve? | Pharyngeal and laryngeal muscles |
| What is the function of the GVE in the vagus nerve? | heart, lungs, digestive treact |
| What is the function of the GSA in the vagus nerve? | Tactile sensation to external ear canal |
| What is the function of the GVA in the vagus nerve? | pain from mucous membranes |
| What is the function of the SVA in the vagus nerve? | taste from epiglottis and pharynx |
| What number is the accessory nerve? | XI |
| What is the origin of the accessory nerve? | medulla, spinal cord |
| What fiber type is in the accessory nerve? | SVE |
| What is the function of the accessory nerve? | neck and shoulder muscles |
| What number is the hypoglossal nerve? | XII |
| What is the function of the hypoglossal nerve? | muscles of the tongue |