1. The Brain

2. l Key component of the Central Nervous System = CNS l Regulates body functions, control, senses, thought, communication, survival

3. CerebrumCerebellum Brain Stem

4. Central Nervous SystemPeripheralNervousSystem

5. SPINAL CORD l Extension of the CNS l Begins at the base of the skull l Transmits information l Nerves branch out

6. l Cranial nerves extend from the brain l Spinal nerves extend from the spinal cord

7. PERIPHERAL NERVOUS SYSTEM l Bundles of nerves extending from the brain and the spinal column

8. Cranial Nerves 1 2 34 5 67 8 9 10 11 12 1. OLFACTORY 2. OPTIC 3. OCULOMOTOR 4. TROCHLEAR 5. TRIGEMINAL 6. ABDUCENS 7. FACIAL 8. VESTIBULOCOCHLEAR 9. GLOSSOPHARYNGEAL 10. VAGUS 11. ACCESSORY 12. HYPOGLOSSAL BLUE = SENSORY WHITE= MOTOR

9. Basic Brain Anatomy l CEREBRUM l CEREBELLUM l BRAIN STEM –Diencephalon –Midbrain –Pons –Medulla Oblongata

11. CEREBRAL HEMISPHERES l Right and Left

12. 4 Cerebral Lobes l FRONTAL l PARIETAL l TEMPORAL l OCCIPITAL l Speech & Motor Skills l Sensory l Auditory l Visual

14. Brain Protection

15. Cerebrospinal Fluid l CSF l SHOCK ABSORBING l CLEAR AND COLORLESS l SUPPORTS SPINAL CORD

16. Meneges l 3 Coverings of the Brain l Help to Protect it –Envelop it l Fibrous Tissue

17. Dura Mater l OUTERMOST l THICKEST

19. Arachnoid l SPIDER-WEB l LINES INNER SURFACE OF DURA MATER l VERY THIN

21. Pia Mater l BELOW ARACHNOID l INNERMOST COVERING OF BRAIN AND SPINAL CORD

23. Subarachnoid Space l BETWEEN ARACHNOID AND PIA MATER l Filled with CSF