Dendritic filopodia
Dendritic Filopodia
Dendritic filopodia (/dɛnˈdraɪtɪk/ /fɪləˈpoʊdiə/) are thin, long, and highly dynamic protrusions that extend from the dendrite of a developing neuron. They are involved in the formation of new synapses and the maturation of the nervous system.
Etymology
The term "dendritic filopodia" is derived from two words. "Dendritic" comes from the Greek word "dendron" which means tree, referring to the tree-like branching structure of a neuron's dendrites. "Filopodia" is derived from the Latin words "filum" meaning thread and "podium" meaning foot, referring to the thread-like extensions of the dendrites.
Function
Dendritic filopodia play a crucial role in the development of the nervous system. They act as the primary sites for the formation of new synapses, which are the junctions between two neurons where they communicate. Dendritic filopodia explore the environment, make contact with axons, and initiate synapse formation. They are also involved in the maturation of the nervous system, as they help in the remodeling and strengthening of synapses.
Related Terms
- Neuron: A specialized cell transmitting nerve impulses; a nerve cell.
- Dendrite: The branched projections of a neuron that act to conduct the electrochemical stimulation received from other neural cells to the cell body.
- Synapse: The junction between the terminal of a neuron and either another neuron or a muscle or gland cell, over which nerve impulses pass.
- Axon: The long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.
External links
- Medical encyclopedia article on Dendritic filopodia
- Wikipedia's article - Dendritic filopodia
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