1. Cerebrum Cerebellum Brain stem Cerebrum Cerebellum
Brain stem (Medulla Oblongata)
Brain stem
Cerebrum
Cerebellum
- Intelligence, learning, judgment
- Speech and memory
Sense of hearing, vision, taste
and smell
- Skeletal muscle movements
Balance and coordination
Posture
- Changes in heart rate
- Breathing, blood pressure,
vomiting, swallowing
- Digestion

2. Parietal Lobe Frontal Lobe Occipital Lobe Cerebrum Temporal Lobe2
Frontal Lobe 1
Occipital Lobe 3
Cerebrum
_1__ Thought and reasoning, movement and problem solving
_2__ Spatial analysis and orientation
_3__ Visual perception
_4__ Auditory stimulation, memory
and speech
Temporal Lobe 4

3. Hypothalamus
The hypothalamus links the nervous system to the endocrine system and maintains homeostasis.
It produces hormones that govern body temperature, hunger, thirst, sleep, moods and sex drive.
It controls the pituitary gland and other glands.

4. Blood Alcohol Content
(BAC)
Area of Brain affected
Effect on behavior
0-0.05%
Cerebrum
Decision making affected. Person feels more confident yet actually shows poorer judgement. More talkative, louder. Decides to drink more %
Back of cerebrum. Speech and vision centers.
Slurred speech, may feel euphoric even though losing control. %
Cerebellum
Motor coordination, vision impaired. Staggering and drowsy. %
Midbrain, Medulla
Dangerous! Difficult to regulate body temp, stupor, coma, paralysis, irregular heart rate, respiratory distress

5. Alcohol affects the entire body
Alcohol affects the entire body. All systems are involved when alcohol is present.
Alcohol is a nervous system depressant. How does this effect nerve impulse transmission?
Remember that neurons communicate with each other by the release of neurotransmitters across synapses.
Alcohol influences neurotransmitter activity. Certain neurotransmitters inhibit (slow down) brain activity (transmission of impulses) causing such effects as slow reaction time. Alcohol can also change the type of neurotransmitter released by a cell.
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6. Digestive system : stomach ulcers, pancreas, liver, kidney, irritable colon. Inability to absorb nutrients. Irritation of stomach lining = vomiting (on yourself at a party- gross and embarrassing!
Circulatory system: Blood vessels becoming dilated, high blood pressure, increased body temperature but subsequent heat loss. Flushed (due to increased blood flow to skin)
Liver Function: most alcohol is processed by the liver. (7oz/hour). Liver enzymes breakdown alcohol. Some people have more enzymes than others (why some can “hold” their liquor and others cannot?- can have a genetic role. Inherit different forms of enzyme. Alcohol disrupts the liver’s ability to breakdown fats. Fats can accumulate with heavy drinkers and lead to tissue damage(cirrhosis). Liver functions begin to fail and person can experience malnutrition, diabetes.

7. Links
Illusions
After Images
Benham's Disk

8. DUI (Driving Under the Influence) 0
DUI (Driving Under the Influence) 0.08% or higher BAC DWAI (Driving While Ability Impaired) 0.05% or higher BAC
1st Offense
2nd Offense
3rd Offense
Jail
Up to 1 year (DUI), or up to 180 days (DWAI)
Up to 1 year (DUI & DWAI)
Fines and Penalties
Up to $1,000 (DUI), or up to $500 (DWAI)
Up to $1,500 (DUI & DWAI)
Up to $1,500 (DUI), or up to $1,000 (DWAI)
License Suspension
9 months (DUI), none for DWAI
1 year (DUI & DWAI)
2 years (DUI & DWAI)
IID** Required No
Yes