1. Notes from Friday, Jan. 25 Write out everything in yellow! Thank you.

2. The Meninges Dura mater - outermost layer Arachnoid mater - no blood vessels, in between layer (resembles a spider web) Pia mater -inner membrane, contains nerves and blood vessels to nourish cells

3. The Meninges Figure 13.25a CSF = cerebrospinal fluid

4. Dura mater is being peeled away in this photo.

5. Subdural Hematoma

7. Spinal Cord passes down the vertebral canal, has 31 segments (each with a pair of spinal nerves) Cervical enlargement = supplies nerves to upper limbs (neck) Lumbar enlargement = supplies nerves to the lower limbs (lower back) FUNCTION: conducting nerve impulses, serves as a center for spinal reflexes

8. ASCENDING - impulses travel to the brain (sensory) DESCENDING - impulses travel to the muscles (motor)

9. Spinal reflexes - reflex arcs pass through the spinal cord

11. THE BRAIN ANATOMICAL REGIONS o Cerebrum o Cerebellum o Brain Stem o Diencephalon

12. CEREBELLUM Balance and coordination

14. Figure 13.4 Write out the parts of the diencephalon and the brain stem!

15. 1. Cerebral Hemispheres - left and right side separated by the.... 2. Corpus Callosum - connects the two hemispheres Write this!

16. The Cerebral Hemispheres Figure 13.7b, c Know the Lobes of the brain and their function.

17. Take the Left Brain – Right Brain Test

18. Corpus callosum

19. 3. Convolutions of the Brain - the wrinkles and grooves of the cerebrum Fissures = deep groove Sulcus = shallow groove Gyrus = bump Write these three words!!

20. 4. Fissures – separate lobes Longitudinal fissure - separate right and left sides