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  2. Polarity (international relations) - Wikipedia

    en.wikipedia.org/wiki/Polarity_(international...

    The closer to 1, the more concentrated power is. There is a general but not strict correlation between concentration and polarity. It is rare to find a result over 0.5, but a result between 0.4 and 0.5 usually indicates a unipolar system, while a result between 0.2 and 0.4 usually indicated a bipolar or multipolar system.

  3. Unipolar neuron - Wikipedia

    en.wikipedia.org/wiki/Unipolar_neuron

    The cell bodies of invertebrate unipolar neurons are often located around the edges of the neuropil, in the so-called cell-body rind. [3] Most neurons in the central nervous systems of vertebrates, including mammals, are multipolar. [4] In multipolar neurons, multiple processes extend from the cell body including dendrites and axons.

  4. Bipolar neuron - Wikipedia

    en.wikipedia.org/wiki/Bipolar_neuron

    Bipolar neurons exist within the vestibular nerve as it is responsible for special sensory sensations including hearing, equilibrium and motion detection. The majority of the bipolar neurons belonging to the vestibular nerve exist within the vestibular ganglion with axons extending into the maculae of utricle and saccule as well as into the ...

  5. Bipolar disorder - Wikipedia

    en.wikipedia.org/wiki/Bipolar_disorder

    The choice of medications may differ depending on the bipolar disorder episode type or if the person is experiencing unipolar or bipolar depression. [ 17 ] [ 143 ] Other factors to consider when deciding on an appropriate treatment approach includes if the person has any comorbidities, their response to previous therapies, adverse effects, and ...

  6. Multipolar neuron - Wikipedia

    en.wikipedia.org/wiki/Multipolar_neuron

    A multipolar neuron is a type of neuron that possesses a single axon and many dendrites (and dendritic branches), allowing for the integration of a great deal of information from other neurons. These processes are projections from the neuron cell body. Multipolar neurons constitute the majority of neurons in the central nervous system.

  7. Sensory neuron - Wikipedia

    en.wikipedia.org/wiki/Sensory_neuron

    The five basic classes of neurons within the retina are photoreceptor cells, bipolar cells, ganglion cells, horizontal cells, and amacrine cells. The basic circuitry of the retina incorporates a three-neuron chain consisting of the photoreceptor (either a rod or cone), bipolar cell, and the ganglion cell. The first action potential occurs in ...

  8. Pyramidal cell - Wikipedia

    en.wikipedia.org/wiki/Pyramidal_cell

    Pyramidal cells, or pyramidal neurons, are a type of multipolar neuron found in areas of the brain including the cerebral cortex, the hippocampus, and the amygdala. Pyramidal cells are the primary excitation units of the mammalian prefrontal cortex and the corticospinal tract.

  9. Retina bipolar cell - Wikipedia

    en.wikipedia.org/wiki/Retina_bipolar_cell

    Bipolar cells receive synaptic input from either rods or cones, or both rods and cones, though they are generally designated rod bipolar or cone bipolar cells. There are roughly 10 distinct forms of cone bipolar cells, however, only one rod bipolar cell, due to the rod receptor arriving later in the evolutionary history than the cone receptor ...