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  2. Bipolar neuron - Wikipedia

    en.wikipedia.org/wiki/Bipolar_neuron

    Bipolar neurons, classified as second-order retinal neurons, play a crucial role in translating responses to light into a neural code for vision. [5] Often found in the retina, bipolar cells are crucial as they serve as both direct and indirect cell pathways. The specific location of the bipolar cells allow them to facilitate the passage of ...

  3. Sensory neuron - Wikipedia

    en.wikipedia.org/wiki/Sensory_neuron

    The sensory neurons involved in smell are called olfactory sensory neurons. These neurons contain receptors, called olfactory receptors, that are activated by odor molecules in the air. The molecules in the air are detected by enlarged cilia and microvilli. [5] These sensory neurons produce action potentials.

  4. List of animals by number of neurons - Wikipedia

    en.wikipedia.org/wiki/List_of_animals_by_number...

    The human brain contains 86 billion neurons, with 16 billion neurons in the cerebral cortex. [ 2 ] [ 1 ] Neuron counts constitute an important source of insight on the topic of neuroscience and intelligence : the question of how the evolution of a set of components and parameters (~10 11 neurons, ~10 14 synapses) of a complex system leads to ...

  5. Range fractionation - Wikipedia

    en.wikipedia.org/wiki/Range_fractionation

    The range of a single sensory neuron is indicated in yellow. In this depiction, low-intensity stimuli (light blue, left) would activate a single sensory neuron, whereas high-intensity stimuli (dark blue, right) may activate 3-4 neurons. The collective firing pattern of the sensory neurons will inform the nervous system about the stimulus ...

  6. Afferent nerve fiber - Wikipedia

    en.wikipedia.org/wiki/Afferent_nerve_fiber

    Afferent neurons are pseudounipolar neurons that have a single process leaving the cell body dividing into two branches: the long one towards the sensory organ, and the short one toward the central nervous system (e.g. spinal cord). These cells do have sensory afferent dendrites, similar to those typically inherent in neurons. [1]

  7. Olfactory receptor neuron - Wikipedia

    en.wikipedia.org/wiki/Olfactory_receptor_neuron

    Humans have between 10 and 20 million olfactory receptor neurons (ORNs). [3] In vertebrates, ORNs are bipolar neurons with dendrites facing the external surface of the cribriform plate with axons that pass through the cribriform foramina with terminal end at olfactory bulbs.

  8. 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 ...

  9. List of regions in the human brain - Wikipedia

    en.wikipedia.org/wiki/List_of_regions_in_the...

    Chief or pontine nucleus of the trigeminal nerve sensory nucleus (V) Motor nucleus for the trigeminal nerve (V) Abducens nucleus (VI) Facial nerve nucleus (VII) Vestibulocochlear nuclei (vestibular nuclei and cochlear nuclei) (VIII) Superior salivatory nucleus; Pontine tegmentum. Pontine micturition center (Barrington's nucleus) Locus coeruleus

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