1. THE NERVOUS SYSTEM

2. 2 MAIN DIVISIONS Central Nervous System Peripheral Nervous System
Brain
Spinal Cord
Peripheral Nervous System
Nerves that send messages between CNS and the body

3. NEURONS Sensory Neurons Motor Neurons
Neurotransmitters: chemicals stored in the sacs of the axon terminals that allow messages across synapses
Serotonin: emotions, sleep
Spinal Reflex

4. PERIPHERAL NERVOUS SYSTEM
2 main divisions:
Somatic Nervous System
Senses
Autonomic Nervous System
Vital Functions and Emotions
Sympathetic Nervous System: prepares body for stressful situation
Parasympathetic Nervous System: calms body down

5. ROLE OF THE NERVOUS SYSTEM
Memory
Comprehension
Emotions
Behavior
Reaction Time

6. NEUROTRANSMITTER INHIBITORS
Alcohol & Drugs
Strokes
Accidents
Oxygen Deprivation
Stress
Sleep Deprivation