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  2. Interneuron - Wikipedia

    en.wikipedia.org/wiki/Interneuron

    Interneurons can be further broken down into two groups: local interneurons and relay interneurons. [4] Local interneurons have short axons and form circuits with nearby neurons to analyze small pieces of information. [5] Relay interneurons have long axons and connect circuits of neurons in one region of the brain with those in other regions. [5]

  3. Chemical synapse - Wikipedia

    en.wikipedia.org/wiki/Chemical_synapse

    Artistic interpretation of the major elements in chemical synaptic transmission. An electrochemical wave called an action potential travels along the axon of a neuron.When the action potential reaches the presynaptic terminal, it provokes the release of a synaptic vesicle, secreting its quanta of neurotransmitter molecules.

  4. Spinal interneuron - Wikipedia

    en.wikipedia.org/wiki/Spinal_interneuron

    V2 neurons, which include a population of glutamatergic V2a neurons and inhibitory V2b neurons, project ipsilaterally and caudally across multiple spinal cord regions. [6] The class V1 neurons give rise to two local circuit inhibitory neurons known as Renshaw cells and Ia inhibitory interneurons.

  5. Synapse - Wikipedia

    en.wikipedia.org/wiki/Synapse

    Diagram of a chemical synaptic connection. In the nervous system, a synapse [1] is a structure that allows a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron or a target effector cell. Synapses can be classified as either chemical or electrical, depending on the mechanism of signal transmission between neurons.

  6. Outline of the human nervous system - Wikipedia

    en.wikipedia.org/wiki/Outline_of_the_human...

    A neuron (also known as a neurone or nerve cell) is an excitable cell in the nervous system that processes and transmits information by electrochemical signaling. Neurons are the core components of the brain, spinal cord, and peripheral nerves. Soma; Axon; Myelin; Dendrite; Dendritic spine

  7. Reflex arc - Wikipedia

    en.wikipedia.org/wiki/Reflex_arc

    When a reflex arc in an animal consists of only one sensory neuron and one motor neuron, it is defined as monosynaptic, referring to the presence of a single chemical synapse. In the case of peripheral muscle reflexes (patellar reflex, achilles reflex), brief stimulation to the muscle spindle results in contraction of the agonist or effector muscle

  8. Neuron - Wikipedia

    en.wikipedia.org/wiki/Neuron

    Neurons communicate with other cells via synapses, which are specialized connections that commonly use minute amounts of chemical neurotransmitters to pass the electric signal from the presynaptic neuron to the target cell through the synaptic gap. Neurons are the main components of nervous tissue in all animals except sponges and placozoans.

  9. File:Complete neuron cell diagram en.svg - Wikipedia

    en.wikipedia.org/wiki/File:Complete_neuron_cell...

    English: Complete neuron cell diagram. Neurons (also known as neurones and nerve cells) are electrically excitable cells in the nervous system that process and transmit information. In vertebrate animals, neurons are the core components of the brain, spinal cord and peripheral nerves.