Terms : Hide Images
| 9468648209 | neuron | nerve cell that transfers information within the body |  | 0 |
| 9468648210 | sensory neuron | neuron that transmits information from sensors that detect external stimuli |  | 1 |
| 9468648211 | interneuron | neuron in the brain that integrates the sensory input |  | 2 |
| 9468648212 | motor neuron | neuron that transmits signals to muscle cells, causing them to contract |  | 3 |
| 9468648213 | central nervous system | the system of neurons that carry out integration |  | 4 |
| 9468648214 | peripheral nervous system | the system of neurons that carry information into and out of the CNS constitute |  | 5 |
| 9468648215 | cell body | area of the neuron where the nucleus and organelles are located | | 6 |
| 9468648216 | dendrite | branched extension that receives signals from other neurons |  | 7 |
| 9468648217 | axon | an extension that transmits signals to the other neurons | | 8 |
| 9468648218 | synapse | the junction between cells where the information is transmitted |  | 9 |
| 9468648219 | neurotransmitter | chemical messenger tat passes information from the transmitting neuron to the receiving cell |  | 10 |
| 9468648222 | membrane potential | a voltage across a plasma membrane |  | 11 |
| 9468648223 | resting potential | the membrane potential of a resting neuron |  | 12 |
| 9468648224 | hyperpolarization | increase in magnitude of the membrane potential | 13 | |
| 9468648225 | depolarization | reduction in magnitude of the membrane potential | 14 | |
| 9468648226 | voltage gated ion channel | ion channel that opens or closes in response to a change in membrane potential |  | 15 |
| 9468648227 | action potential | massive change in membrane voltage triggered by a stimulus |  | 16 |
| 9468648228 | threshold | the potential that an excitable cell membrane must reach for an action potential to be initiated | 17 | |
| 9468648229 | myelin sheath | layer of electrical insulation that surrounds vertebrate axons |  | 18 |
| 9468648230 | nodes of Ranvier | gaps in the myelin sheath of certain axons where an action potential may be generated |  | 19 |
| 9468648231 | saltatory conduction | rapid transmission of a nerve impulse along an axon, resulting from the action potential jumping from one node of Ranvier to another | 20 | |
| 9468648232 | synaptic vesicle | membrane-bound compartments that transfer neurotransmitters |  | 21 |
| 9468648238 | nerve | a bundle of multiple nerve cells |  | 22 |
| 9468648242 | motor system | system of neurons that carries signals to skeletal muscles in response to external stimuli | 23 | |
| 9468648243 | autonomic nervous system | system of neurons that regulates the internal environment by controlling smooth and cardiac muscles |  | 24 |
| 9468648244 | sympathetic division | division that corresponds to arousal and energy generation (fight-or-flight response) |  | 25 |
| 9468648245 | parasympathetic division | division that causes responses that promote calming and a return to self-maintenant functions (rest-and-digest response) |  | 26 |
| 9468648254 | limbic system | region of the brain responsible for emotion, motivation, olfaction, behavior, and memory |  | 27 |
