dendrite

[′den‚drīt]

(neuroscience)

The part of a neuron that carries the unidirectional nerve impulse toward the cell body. Also known as dendron.

(crystallography)

A crystal having a treelike structure.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Dendrite

a branching process of a nerve cell that receives excitatory or inhibitory influences from other neurons or receptor cells.

In some types of cells the dendrite directly receives mechanical, chemical, or thermal stimulation. Various cells may have from one to many dendrites. They form the sensory pole of the nerve cell. The dendrite attains maximal branching in neurons of the central nervous systems of animals with a high degree of organization. The numerous synapses on the surface of a dendrite are formed by the axons of other cells that approach them.

Dendrite

a crystalline form of a mineral, alloy, or artificial compound, pertaining to a complex type of skeleton crystals (incomplete crystalline polyhedra) or to an aggregation of accreted crystals, mutually oriented in accordance with their symmetry. Usually a dendrite is shaped like the small branches of a tree, the leaf of a fern, or a star (for example, a snowflake). Dendrites are formed from melts, vapors, or solutions during the rapid crystallization of the substance under conditions of restricted growth as a result of the uneven supply of materials to various parts of the growing crystals, for example, along fine, small fissures or rocks, crystals, or aggregates of other minerals; between thin glass plates; in viscous media; and in friable clay formations. In nature, dendrites are common in native copper, silver, gold, and other metals as well as in pyrolusite, uraninite, the sulfides of iron and copper, and many other minerals.

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References in periodicals archive

The test revealed thatEethe tangled-nanotube film effectively destroyed dendrites over 580 charge/discharge cycles of a test battery when used with a sulfurised-carbon cathode.

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Using hard-to-obtain samples of human brain tissue, MIT neuroscientists have now discovered that human dendrites have different electrical properties from those of other species.

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The effects of ropinirole versus vehicle on F3 hiPSC-derived DA neurons were significantly (p < 0.01, Bonferroni's test) attenuated by pretreatment with SB277011-A (50 nM), S33084 (10 nM), and the nonselective D2/D3R antagonist sulpiride (5 [micro]M), but not by the D1R antagonist SCH23390 (1 [micro]M) (Figures 4(a)-4(c)), as supported by the significant two-way ANOVA interaction obtained on the maximal length of dendrites [[F.sub.(4,290)] = 5.4, p < 0.0001], number of primary dendrites [[F.sub.(4,490)] = 4.9, p < 0.0001], and soma area [[F.sub.(4,390)] = 4.3, p <0.001].

Ropinirole and Pramipexole Promote Structural Plasticity in Human iPSC-Derived Dopaminergic Neurons via BDNF and mTOR Signaling

Current battery designs use electrodes made of graphite filled with lithium, which prevents dendrites but reduces capacity by about 10 times.

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And researchers now have the tools to watch dendrites as they grow and change over time (SN: 7/12/14, p.

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The goal of the third edition of Worksheets DonAEt Grow Dendrites: 20 Instructional Strategies That Engage the Brain is to share a set of twenty best practices for instruction delivery gleaned from years of research and classrooms around the world.

Worksheets Don't Grow Dendrites: 20 Instructional Strategies That Engage the Brain, 3rd Edition