enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Axon - Wikipedia

    en.wikipedia.org/wiki/Axon

    An axon can divide into many branches called telodendria (Greek for 'end of tree'). At the end of each telodendron is an axon terminal (also called a terminal bouton or synaptic bouton, or end-foot). [20] Axon terminals contain synaptic vesicles that store the neurotransmitter for release at the synapse. This makes multiple synaptic connections ...

  3. Axoplasm - Wikipedia

    en.wikipedia.org/wiki/Axoplasm

    Axoplasm is the cytoplasm within the axon of a neuron (nerve cell). For some neuronal types this can be more than 99% of the total cytoplasm. [1]Axoplasm has a different composition of organelles and other materials than that found in the neuron's cell body or dendrites.

  4. Dendrite - Wikipedia

    en.wikipedia.org/wiki/Dendrite

    An autapse is a synapse in which the axon of one neuron transmits signals to its own dendrite. The general structure of the dendrite is used to classify neurons into multipolar, bipolar and unipolar types. Multipolar neurons are composed of one axon and many dendritic trees.

  5. Group A nerve fiber - Wikipedia

    en.wikipedia.org/wiki/Group_A_nerve_fiber

    There are four subdivisions of group A nerve fibers: alpha (α) Aα; beta (β) Aβ; , gamma (γ) Aγ, and delta (δ) Aδ. These subdivisions have different amounts of myelination and axon thickness and therefore transmit signals at different speeds. Larger diameter axons and more myelin insulation lead to faster signal propagation.

  6. Axonal transport - Wikipedia

    en.wikipedia.org/wiki/Axonal_transport

    Axonal transport, also called axoplasmic transport or axoplasmic flow, is a cellular process responsible for movement of mitochondria, lipids, synaptic vesicles, proteins, and other organelles to and from a neuron's cell body, through the cytoplasm of its axon called the axoplasm. [1]

  7. Neuroregeneration - Wikipedia

    en.wikipedia.org/wiki/Neuroregeneration

    When a nerve axon is severed, the end still attached to the cell body is labeled the proximal segment, while the other end is called the distal segment. After injury, the proximal end swells and experiences some retrograde degeneration, but once the debris is cleared, it begins to sprout axons and the presence of growth cones can be detected.

  8. Human brain - Wikipedia

    en.wikipedia.org/wiki/Human_brain

    An action potential is initiated at the initial segment of an axon, which contains a specialised complex of proteins. [127] When an action potential reaches the axon terminal it triggers the release of a neurotransmitter at a synapse that propagates a signal that acts on the target cell. [ 128 ]

  9. Axon terminal - Wikipedia

    en.wikipedia.org/wiki/Axon_terminal

    Axon terminals (also called terminal boutons, synaptic boutons, end-feet, or presynaptic terminals) are distal terminations of the branches of an axon. An axon, also called a nerve fiber, is a long, slender projection of a nerve cell that conducts electrical impulses called action potentials away from the neuron's cell body to transmit those ...