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| 13890997935 | Biological psychologists | Study links between biological and psychological processes. | 0 | |
| 13890997936 | Dendrite | A neuron's bushy, branching extensions that receive messages and conduct impulses toward the cell body. |  | 1 |
| 13890997937 | Cell Body | The cell's life support center. |  | 2 |
| 13890997938 | Nucleus | contains the genetic material of the cell. |  | 3 |
| 13890997939 | Axon | the neuron extension that passes messages through its branches to other neurons. |  | 4 |
| 13890997940 | Axon Terminals | Are the hair like ends that receive the message. |  | 5 |
| 13890997941 | Myelin Sheath | a layer of fatty tissue layer that the insulates the axons and speeds their impulses. |  | 6 |
| 13890997942 | Action potential | a brief electrical charge that travels down an axon. |  | 7 |
| 13890997943 | Refractory period | The resting period after the neuron fires. | 8 | |
| 13890997944 | threshold | The level of stimulation required to trigger a neural impulse. | 9 | |
| 13890997945 | All-or-none response | the neuron's reaction to firing or not firing. |  | 10 |
| 13890997946 | Synapse | The gap between the axon tip of sending neuron and the dendrite/cell body of the receiving neuron. |  | 11 |
| 13890997947 | Neurotransmitters | chemical messengers that cross the synaptic gaps between neurons. |  | 12 |
| 13890997948 | Reuptake | A neurotransmitter's reabsorption by the sending neuron. | 13 | |
| 13890997949 | Acetylcholine (ACh) | - Enables muscle action, learning and memory - Lack of it can cause Alzheimer's Disease (ACh neurons deteriorate) | 14 | |
| 13890997950 | Dopamine | - Influences movement, learning, attention, and emotion - Oversupply = Schizophrenia - Undersupply = tremors and decreased mobility in Parkinson's disease | 15 | |
| 13890997951 | Serotonin | - Affects mood, hunger, sleep, and arousal - Undersupply = Depression - Some antidepressant drugs raise serotonin levels | 16 | |
| 13890997952 | Norepinephrine | - Controls alertness and arousal - Undersupply = depress mood | 17 | |
| 13890997953 | Gaba (Gamma-Aminobutryic Acid) | - A major inhibitory nuerotransmitter - Undersupply = seizures, tremors, and insomnia | 18 | |
| 13890997954 | Glutamate | - A major excitatory neurotransmitter involved in memory - Oversupply = Migraines and seizures | 19 | |
| 13890997955 | Endorphins | - In response to pain or rigorous exercise - "Runner's high" or "morphine within" - natural, opiate-like neurotransmitters linked to pain control and/or pleasure. | 20 | |
| 13890997956 | Agonist | Mimic neurotransmitters | 21 | |
| 13890997957 | Antagonist | Block neurotransmitters | 22 |
