Study Guide for first mini quiz
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| 1018084186 | Phrenology | proposed by physician Franz Gall studying bumps on a head could reveal someone's mental abilities | 0 | |
| 1018084187 | Localization of Function | idea that various brain regions have paritcular functions | 1 | |
| 1018084188 | Our adaptive brain is wired by ________ | experience | 2 | |
| 1018084189 | Neurons | tiny cells that are the basic building blocks of the nervous system. Each neuron consists of a cell body and its branching fibers | 3 | |
| 1018084190 | Dendrites | Bushy fibers that receive information and conduct it toward the cell body | 4 | |
| 1018084191 | Axon | Long fiber connected to cell body that passes the message through its terminal branches to other neurons or to muscles or glands | 5 | |
| 1018084192 | Dendrites____, Axons______ | Dendrites listen Axons speak | 6 | |
| 1018084193 | Axons are encased in ____ | Myelin Sheath, a layer of fatty tissue that insultates the axon and speeds up impulses | 7 | |
| 1018084194 | What happends when the myelin sheath dissenigrates? | MS occurs from lack of communication between neurons Causes the "wires" to cross and misfiring occurs | 8 | |
| 1018084195 | Acton Potential | Neurons transmit messages when stimulated by signals from neighboring neurons. In response, a neuron fires an impulse called the acton potential- a brief electrical charge that travels down its axon. | 9 | |
| 1018084196 | Fluid outside an axon's membrane is mostly____charged; a resulting axon's fluid interior has mostly ____ charged ions | Positive; Negative | 10 | |
| 1018084197 | Resting Potential | The positive exterior and negative interior of axon's membrane | 11 | |
| 1018084198 | The axon's surface is | selectively permeable | 12 | |
| 1018084199 | Neural Impulse | electrical signal travling down the axon | 13 | |
| 1018084200 | Excitary Signals | pushes neuron's acceleration | 14 | |
| 1018084201 | Inhibitory Signals | Pushes neuron's brakes | 15 | |
| 1018084202 | Threshold | level of stimulation required to trigger a neural impulse | 16 | |
| 1018084203 | snyapse | meeting point betwen the neurons | 17 | |
| 1018084204 | neurotransmittors | chemical messengers | 18 | |
| 1018084205 | reputake | the sending neuron reabsorbs the excess neurotransmittors | 19 | |
| 1018084206 | Neurotransmittor pathways | each of the brain's chemical messengers have designated pathways where they operate | 20 | |
| 1018084207 | Alzheimers | Neurons cross talk and stimuli is confused | 21 | |
| 1018084208 | How a neuron fires | All or nothing process It is an electrochemical process | 22 | |
| 1018084209 | Neuron Network | Neurons that learn to work together as a team. ex) neurons in the brain connect with one another to form networks the more thinking= more neurons that fire, and the longer it takes | 23 | |
| 1018084210 | Example of plasticity | girl born with half a brain | 24 | |
| 1018084211 | psychoactive drugs | chemical substances that alter perceptions and mood | 25 | |
| 1018084212 | Tolerance | The diminishing effect with regular use of the same dose of a drug, requiring the user to take bigger and bigger doses before experiencing the drug's effect. | 26 | |
| 1018084213 | Addiction | Compulive drug craving and use, despite adversive consequences | 27 | |
| 1018084214 | Withdrawl | Discomfort or distress that follows discontinuing the use of an addictive drug | 28 | |
| 1018084215 | Physical Dependence | A physiological need for a drug, maked by unpleasant withdrawl sympotms when the drug is discontinued | 29 | |
| 1018084216 | Psychological Dependence | A psychological need to use a drug, such as to releive negative emotions | 30 |
