1. CNS + PNS + Cranial Nerves

2. A. Central Nervous Sys (CNS)
Brain – central control
Spinal cord – connects
brain to body

3. Cross section – spinal cord

4. B. Peripheral Nervous Sys (PNS)
Outside the CNS
31 pair of spinal nerves
12 Cranial Nerves

5. B. PNS

6. CNS vs PNS

7. Cranial Nerves

8. C. Cranial Nerves
CN #1. Olfactory smell 2. Optic vision 3. Occulomotor eye movement constriction of pupil 4. Trochlear 6. Abducens 5. Trigeminal chewing sensation in face

9. C. Cranial Nerves
CN #7. Facial facial expression taste 8. Acoustic – also called vestibulocochlear hearing 9. Glossopharyngeal taste / gag reflex 10. Vagus swallowing / gag reflex / speaking 11. Accessory shrugging 12. Hypoglossal tongue movement