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== <span style="color: #FFFFFF;">Remembering</span> == * '''Neuron''' β The fundamental unit of the nervous system; a specialized cell that transmits nerve impulses. * '''Synapse''' β The junction between two neurons where information is transmitted. * '''Neurotransmitter''' β Chemical messengers that cross the synapse (e.g., Dopamine, Serotonin). * '''Action Potential''' β A rapid rise and fall in electrical membrane potential that travels along an axon. * '''Axon''' β The long threadlike part of a nerve cell along which impulses are conducted. * '''Dendrite''' β The branching extensions of a neuron that receive signals from other neurons. * '''Myelin Sheath''' β An insulating layer around an axon that increases the speed of electrical signals. * '''Glia''' β Supporting cells in the nervous system (not neurons) that provide insulation, nutrients, and waste removal. * '''Central Nervous System (CNS)''' β The brain and spinal cord. * '''Peripheral Nervous System (PNS)''' β The nerves outside the brain and spinal cord. * '''Cerebral Cortex''' β The outer layer of the brain responsible for higher-level functions (memory, language, thought). * '''Limbic System''' β A group of brain structures involved in emotion and memory (e.g., Amygdala, Hippocampus). * '''Neuroplasticity''' β The ability of the nervous system to change its activity in response to intrinsic or extrinsic stimuli. * '''Neurogenesis''' β The process by which new neurons are formed in the brain. </div> <div style="background-color: #006400; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;">
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