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Science Stuff
Neuroscience flashcards for quizzes
Question | Answer |
---|---|
Meter | close to 3 feet |
Centimeter | 1/100th of a meter... width of little finger |
Millimeter | 1/1000th of a meter... thickness toenail |
Micrometer | um...1/1,000,000 of a meter... near limit light microscope |
Nanometer | 1/1,000,000,000th of a meter... near limit of electron microscope |
Axon | up to one meter long or more |
Dendrites | rarely more than 2mm long |
Synapse | 20-25 nm wide |
DNA Strand | Long! but 2nm wide |
Potential energy | stored capacity to kick matter into motion |
Force | operation of such energy... F=ma |
Kinetic energy | energy expressed in motion |
2nd law of thermodynamics | within a closed system... randomness increases over time matter and energy become more randomly dist. things run energetically downhill toward less organized energy that could be used and controlled will become less useful and controllable |
nucleons | protons and neutrons... make up nucleus |