The predominantly inattentive type has a group of nine symptoms of inattention or distraction. You probably have a hard time with organization and paying attention if you have ADHD inattentive type. Causes
Neuron. Definition. noun, plural: neurons. An excitable cell that has specialized cell parts (such as soma, dendrites and axons), structures (such as synapses), and chemicals (such as neurotransmitters) for conducting nerve impulses.Supplement. Neurons are nerve impulse-conducting cells that make up nerves, brain and spinal column.efinition. noun, plural: neurons. An excitable cell that has specialized cell parts (such as soma, dendrites and axons), structures (such as synapses), and chemicals (such as neurotransmitters) for conducting nerve impulses. Supplement.
A neuron is a specialized type of cell found in the bodies of all eumetozoans. Only sponges and a few other simpler animals lack neurons. The features that define a neuron are electrical excitability and the presence of synapses, which are complex membrane junctions that transmit signals to other cells.