1. Why Wrinkles on the Brain? - the wrinkles and grooves of the cerebrumwrinkles Fissures = deep groove Sulcus = shallow groove Gyrus = bump

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

4. THE BRAIN ANATOMICAL REGIONS o Cerebrum o Cerebellum o Brain Stem

5. CEREBELLUM Balance and coordination

6. CEREBRUM - wrinkly large part of the brain, largest area in humans, higher mental function

7. Brain Stem - regulates visceral functions (autonomic system)

9. Figure 13.4

10. 1. Cerebral Hemispheres - left and right side separated by the.... 2. Corpus Callosum - connects the two hemispheres

11. The Cerebral Hemispheres Figure 13.7b, c

12. Take the Left Brain – Right Brain Test

13. Corpus callosum

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

15. Transverse Fissure - separates cerebrum from cerebellum

16. Lateral Fissure separates the temporal lobe from the Frontal and Parietal lobes

18. Lobes of the Brain (general functions) 5. Frontal – reasoning, thinking, language 6. Parietal – touch, pain, relation of body parts (somatosensory) 7. Temporal Lobe – hearing 8. Occipital – vision

19. Figure 13.7a LOBES OF THE BRAIN (CEREBRUM) Sulcus = groove Gyrus = raised bump Fissure = deep groove

20. 9. Cerebral Cortex - thin layer of gray matter that is the outermost portion of cerebrum (the part with all the wrinkles)

21. Functional and Structural Areas of the Cerebral Cortex Figure 13.11a

22. Fluid filled cavities, contain CSF 10.VENTRICLES OF THE BRAIN

23. 11. Cerebrospinal Fluid (CSF) - fluid that protects and supports brain Figure 13.27b

24. FUNCTIONAL REGIONS A. MOTOR AREAS B. SENSORY AREAS C. ASSOCIATION

25. 12. Motor Areas - controls voluntary movements - the right side of the brain generally controls the left side of the body -also has Broca's Area (speech)

26. 13. Sensory Area - involved in feelings and sensations (visual, auditory, smell, touch, taste)

27. 14. Association Areas - higher levels of thinking, interpreting and analyzing information

28. Figure 13.4 BRAIN STEM

29. Consists of three parts: MIDBRAIN PONS MEDULLA OBLONGATA

30. A. Hypothalamus - hormones, heart rate, blood pressure, body temp, hunger B. Thalamus - relay station 14. Diencephalon has 2 parts.....

31. 4. Optic Tract / Chiasma - optic nerves cross over each other

33. 5. Midbrain – visual reflexes, eye movements 6. Pons - relay sensory information 7. Medulla – heart, respiration, blood pressure Cerebellum - balance, coordination

34. Pituitary Gland The "master gland" of the endocrine system. It controls hormones.

35. Corpus callosum Thalamus Hypothalamus Pineal gland

36. Midbrain Medulla Oblongata Pons

38. Check out these brain images!brain images