Home (Dendrites)
Home  
 
 
Home » Biology » Dendrites


 

Dendrites

Biology DendriteDendritic cell

Dendrites (from Greek dendron, 'tree') are the branched projections of a neuron that act to conduct the electrical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project.

 


dendrites Short, highly branched fibers that carry signals toward the cell body of a neuron. PICTURE
dendrochronology The process of determining the age of a tree or wood used in structures by counting the number of annual growth rings.

dendrites -- n. Small branching patterns on rocks made of iron and manganese oxides that show the passage of fluids through the rock.

Dendrites were once believed to merely convey stimulation passively, without action potentials and without activation of voltage-gated ion channels.

The termination of several or many olfactory fibers in a single glomerulus where they form synapses with the dendrites of one or two mitral cells provides for the summation of stimuli in the mitral cells and accounts in part at least for the ...

Most neurons are referred to as "bipolar"; they have a cell body and many small extensions, called dendrites, at one end which receive information (Fig. 1).

The axons and dendrites are surrounded by a white myelin sheath. Cell bodies are in the central nervous system (CNS) or ganglia. Ganglia are collections of nerve cell bodies. Cranial nerves in the PNS take impulses to and from the brain (CNS).

A ropelike bundle of neuron fibers (axons and dendrites) tightly wrapped in connective tissue.
nerve fiber
A filamentous process extending from the cell body of a neuron and conducting the nerve impulse; an axon.

In many neurons, nerve impulses are generated in short branched fibers called dendrites and also in the cell body. The impulses are then conducted along the axon, which usually branches several times close to its end.

Some have extensions called dendrites and axons. The axons can be several feet long, reaching from your spinal column to your big toe. The axons are supported structurally by microtubules.

cyton Cell body; contains nucleus and some other organelles but excludes processes extending from cell. For example, the neurocyton is the nerve cell body, excluding the axon and dendrites.

Ab42 (the 42-amino-acid form of Ab) induces membrane lipid peroxidation in synapses and dendrites resulting in impairment of membrane ion-motive ATPases and glucose and glutamate transporters.

See also: Dendrite, Cells, Neuron, Trans, Cell