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  2. Sensory neuron - Wikipedia

    en.wikipedia.org/wiki/Sensory_neuron

    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. Their axons form the olfactory nerve, and they synapse directly onto neurons in the cerebral cortex (olfactory ...

  3. Sensory nervous system - Wikipedia

    en.wikipedia.org/wiki/Sensory_nervous_system

    Areas 1 and 2 receive most of their input from area 3. There are also pathways for proprioception (via the cerebellum), and motor control (via Brodmann area 4). See also: S2 Secondary somatosensory cortex. The human eye is the first element of a sensory system: in this case, vision, for the visual system.

  4. Sensillum - Wikipedia

    en.wikipedia.org/wiki/Sensillum

    Inside each sensillum there are two to four sensory neurons. These neurons, or receptors, gather information about environment the arthropod is in: [1] Chemoreceptors (i.e. trichoid, basionic, coeloconic, placodea) Mechanoreceptors (e.g.: bristle sensilla, campaniform sensilla, hair plates, chordotonal neurons) Thermoreceptors; Hygroreceptors

  5. Sensory neuroscience - Wikipedia

    en.wikipedia.org/wiki/Sensory_neuroscience

    Sensory neuroscience is a subfield of neuroscience which explores the anatomy and physiology of neurons that are part of sensory systems such as vision, hearing, and olfaction. Neurons in sensory regions of the brain respond to stimuli by firing one or more nerve impulses ( action potentials ) following stimulus presentation.

  6. Neuron - Wikipedia

    en.wikipedia.org/wiki/Neuron

    Unipolar cells are exclusively sensory neurons. Their dendrites receive sensory information, sometimes directly from the stimulus itself. The cell bodies of unipolar neurons are always found in ganglia. Sensory reception is a peripheral function, so the cell body is in the periphery, though closer to the CNS in a ganglion.

  7. Nerve net - Wikipedia

    en.wikipedia.org/wiki/Nerve_net

    [2] The nerve net is the simplest form of a nervous system found in multicellular organisms. Unlike central nervous systems, where neurons are typically grouped together, neurons found in nerve nets are spread apart. This nervous system allows cnidarians to respond to physical contact. They can detect food and other chemicals in a rudimentary way.

  8. Sensory nerve - Wikipedia

    en.wikipedia.org/wiki/Sensory_nerve

    Damage to the sensory nerve causes a wide range of symptoms because of the number of functions performed by the nerve. Traumatic injuries and other damages to the sensory nerves may lead to peripheral neuropathy, with problems such as reduced position sense causing poorer coordination and balance, in addition to reduced sensitivity to temperature change and pain, leading to further problems.

  9. Type Ia sensory fiber - Wikipedia

    en.wikipedia.org/wiki/Type_Ia_sensory_fiber

    A muscle spindle, with γ motor and Ia sensory fibers. A type Ia sensory fiber, or a primary afferent fiber, is a type of afferent nerve fiber. [1] It is the sensory fiber of a stretch receptor called the muscle spindle found in muscles, which constantly monitors the rate at which a muscle stretch changes.

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