1. to learn about your BRAIN!!!
Today is a great day
to learn about your BRAIN!!!

2. Human Brain

3. How do we know about the brain?
EEG- electrical activity of brain
CAT- 3D images
MRI- image of radio waves/ Hydrogen atom energy
PET- visual image of trace chemical activity after injection of radioactive substance

4. EEG

5. EEG

6. CAT

7. Can you find the brain tumor?

8. CAT

9. MRI

10. MRI

11. PET

12. PET

13. PET

14. Parts of the Brain

16. Cerebrum Longest part of brain Two hemispheres
Responsible for voluntary movement, speech, emotion, memory intelligence and memory processing

17. Cerebral Cortex

18. Cerebral Cortex
The body’s ultimate control and information processing center
Covers the brain’s lower level structures
Contains an estimated 30 billion nerve cells
Divided into four lobes

21. Frontal Lobes
The portion of the cerebral cortex lying just behind the forehead
Is involved in making plans and judgments

22. What’s a frontal lobe to do?

24. Occipital Lobe The primary visual processing area
Located in the back of the head

27. Parietal Lobes
Regions available for general processing, including mathematical reasoning
Designated as the association lobes
Behind the frontal lobes
Processes taste, smell, and feeling
Motion – motor cortex

30. Motor Cortex Area at the rear of the frontal lobes
Controls voluntary movement
Different parts of the cortex control different parts of the body.
The motor cortex in the left hemisphere controls the right side of the body and visa versa.

32. Somatosensory Cortex Located in the front of the parietal lobes
Registers and processes body senses
Soma is Greek for “body.”

34. Temporal Lobes
Includes the auditory cortex where sound information is processed
Located roughly above the ears

38. Cerebellum Latin for the “little brain”
Located in the rear of the brain
Helps coordinate voluntary movements and balance
If damaged, the person could perform basic movements but would lose fine coordination skills.

40. Brainstem The oldest part of the brain
Is responsible for automatic survival functions
Located where the spinal cord swells and the brain just begins

42. Midbrain
The MIDBRAIN is also responsible for behaviors associated with hearing and sight
Pupil dilation and eyeball movement

44. PONS
The PONS is responsible for helping to regulate breathing, to help with sleep and wake cycles, and controls facial expressions

45. Duchenne-Facial Expression Chart (electrical stimulation)

47. Medulla The base of the brainstem
Controls life-supporting functions like heartbeat and breathing
Damage to this area can lead to death.

48. The Lovely Limbic System

49. Limbic System
A ring of structures around the thalamus; at the border of the brainstem and cerebral cortex
Helps regulate memory, aggression, fear, hunger, and thirst
Includes the hypothalamus, hippocampus, and amygdala

51. Thalamus Sits atop the brainstem
The brain’s sensory switchboard -- directs messages to the sensory receiving areas in the cortex
Thalamus is Greek for “inner chamber.”

53. Hypothalamus Located directly under the front of the thalamus
Regulates eating, drinking, body temperature, and the fight or flight reactions to stress
Plays a role in emotions, pleasure, and sexual function

55. Hippocampus Wraps around the back of the thalamus
Plays a role in processing new memories for permanent storage
Looks something like a seahorse
Hippo is Greek for “horse.”

57. Amygdala Two almond shaped structures
Controls emotional responses such as fear and anger

59. May I please be excused? My brain is full.