Key Concepts
1.	Major parts of the neuron
a.	Dendrites - Receive messages from other neurons
b.	Axons - Send messages
c.	Myelin Sheath - Increases speed of neural impulse along  axon
d.	Action Potential - Molecular message is sent to neighboring neurons
2.	Major Neurotransmitters
a.	Acetylcholine - muscle movement; associated with alzheimers
i.	Nicotine artificially stimulates muscles and can lead to trembling
b.	Serotonin - mood regulation; associated with depression, O.C.D, anxiety, and addiction
i.	Prozac keeps serotonin in synapse longer
c.	Dopamine - movement and pleasure; associated with schizophrenia and parkinson’s
3.	Functional organization of the nervous system
a.	Central Nervous System - Brain and spinal cord
b.	Peripheral Nervous System - All other nerves
i.	Somatic - Voluntary
ii.	Autonomic - Involuntary
1.	Parasympathetic - Calms the body down
2.	Sympathetic - Arouses body
4.	Imaging Techniques and Tools
a.	EEG - Read brainwave patterns produced by electrical activity of the surface of brain
b.	CT Scan - Xray photos taken from different angles and combined into a composite representation of a slice through the body
c.	Pet Scan - Visual display of brain activity detects a radioactive form of gluclose while brain performs a specific task
d.	MRI - Uses magnetic fields and radio-waves to produce computer generated images that distinguish among different types of soft tissues
e.	fMRI - Compares MRI scans less than a second apart, detects blood moving to active parts of brain, shows brain functions
5.	Parts and functions of the hindbrain
a.	Formed of the cerebellum, visual cortex, occipital lobe