1. Chapter 12 Anatomy of the Human BRAIN

2. Start at 3:40

3. 4 Major Regions
Cerebrum
Diencephalon
Brain Stem
Cerebellum

4. External View

5. Function of LOBES

6. Internal View

7. Cerebrum
CEREBRUM

8. Cerebrum
Right & Left hemispheres connected by corpus callosum (bridge of fibers)
Surface = ridges (gyri) & grooves (sulci)
Center for reasoning & memory
Largely determines a person’s intelligence and personality
Composed of 4 lobes:
Frontal
Parietal
Temporal
Occipital

9. CEREBRUM
FRONTAL LOBE
Concentration, planning, problem-solving, cognition, frontal eye fields
PARIETAL LOBE
Understanding speech, using grammar and word organization
TEMPORAL LOBE
Sensory interpretation. Memory of visual and auditory patterns.
OCCIPITAL LOBE
Combines visual images and visual recognition of objects and shapes.

10. DIENCEPHALON
Diencephalon

11. Diencephalon Thalamus Hypothalamus
Integrates sensory impulses (except smell)
Sends motor signals toward spinal cord
Maintains consciousness
Hypothalamus
Produce hormones that control the pituitary
Hunger
Body Temperature
Works with limbic system to control emotions

12. Cerebellum
CEREBELLUM

13. Cerebellum Balance Posture Walking
Coordinating Center for motor activity
Balance
Posture
Walking

14. Brain Stem
BRAIN STEM

15. Brain Stem Midbrain Pons Medulla oblongata
Controls head and eyes in response to visual stimuli
Controls head and trunk in response to auditory stimuli
Pons
Relay center between cerebrum and medulla
Relay center between cerebellum and cerebrum
Medulla oblongata
Receives info from spinal cord
Regulates heart rate, blood pressure, breathing
Coughing, sneezing and vomiting

16. Ventricles

17. Ventricles There are 4: 2 lateral / right & left (in cerebrum)
Third ventricle (near corpus callosum)
Fourth ventricle (in brain stem)
Cavities that fill with cerebrospinal fluid (nutrition & gas exchange for neurons)

18. Video

19. 6. Working memory & Judgement 4. Gustatory area (taste) 1. Visual area
(sight) 4
8. Problem solving 5 1
3. Auditory area
(hearing) 3
5. Broca’s area
(speech) 7 2 8
7. Language
&
Comprehension
2. Olfactory area
(smell)

20. language & comprehension
gustatory area (taste)
Broca's area (motor speech)
auditory area (hearing)
working memory & judgement
visual area
problem solving
olfactory area (smell)

21. Teenage brain videos Part 1 http://www.youtube.com/watch?v=RpMG7vS9pfw
part 3
Neuricircuitry
The teenage brain
Baby brain development

22. Protection of the Brain
Scalp
Skull
Meninges
Dura mater = outermost layer
Arachnoid mater = middle layer
Subarachnoid space
= space between arachnoid and pia mater
> contains cerebrospinal fluid
* Spinal tap
3. Pia mater = thinnest layer

23. Meninges

24. Meninges Dura mater Arachnoid Pia Mater
Contains tough fibrous connective tissue with many blood vessels
Arachnoid
Thin, netlike layer with blood bessels that reabsorb cerebrospinal fluid
Pia Mater
Very thin layer with many blood vessels

26. Brain FUNCTION FRONTAL LOBE PARIETAL LOBE TEMPORAL LOBE CEREBELLUM
Concentration, planning, problem-solvimg, cognition, frontal eye fields
PARIETAL LOBE
Understanding speech, using grammar and word organization
TEMPORAL LOBE
Sensory interpretation. Memory of visual and auditory patterns.
CEREBELLUM
Reflex for sensory information.
Coordinating Center for motor activity
Balance
Posture
Walking
MEDULLA OBLONGATA
Receives info from spinal cord
Regulates heart rate, blood pressure, breathing
Coughing, sneezing and vomiting
OCCIPITAL LOBE
Combines visual images and visual recognition of objects and shapes.
PONS
Relay center between cerebrum and medulla
Relay center between cerebellum and cerebrum

27. Brain FUNCTION CORPUS CALLOSUM MAMMILARY BODY OPTIC CHIASMA
Forms the neural connection between the right and left cerebral hemispheres
MAMMILARY BODY
Sense of smell (olfaction)
OPTIC CHIASMA
Where the optic fibers from the medial side of each eye cross
PINEAL BODY (gland)
Part of the endocrine system.
Secretes MELATONIN – the “sleep trigger” hormone; controls sleep-wake cycle and mating behaviors
PITUITARY GLAND
Regulates hormonal control
THALAMUS
Integrates sensory impulses (except smell)
Sends motor signals toward spinal cord
Maintains consciousness
HYPOTHALAMUS
Produce hormones that control the pituitary
Hunger
Body Temperature
Works with limbic system to control emotions
MIDBRAIN
Controls head and eyes in response to visual stimuli
Controls head and trunk in response to auditory stimuli
VENTRICLES
Cavities that fill with cerebrospinal fluid (nutrition & gas exchange for neurons)

28. 1. Visual area (sight) 4. Gustatory area (taste) 6. Working memory &
Judgement 6 4
8. Problem
solving 5 1 3 7 2 8
7. Language &
Comprehension
2. Olfactory area
(smell)
3. Auditory area
(hearing)
5. Broca’s area
(speech)

29. Take out a blank sheet of paper...
Write full heading
Write heading
“DISORDERS OF THE NERVOUS SYSTEM”
Write
“1. Alzheimer’s”

30. Brain Disorders Alzheimer’s CBS Sunday Morning Jan’s Story
A Love Lost to Alzheimer’s
(Jan Chorlton)
 Autism
 Living with Autism
 Narcolepsy
Alzheimer’s. Parkinson’s and Huntington’s
Read textbook pp and write a summary of the “terrible three..