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A dendrite (from Greek δένδρον déndron, "tree") or dendron is a branched cytoplasmic process that extends from a nerve cell that propagates the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project.
Dendritic spines serve as a storage site for synaptic strength and help transmit electrical signals to the neuron's cell body. Most spines have a bulbous head (the spine head), and a thin neck that connects the head of the spine to the shaft of the dendrite. The dendrites of a single neuron can contain hundreds to thousands of spines.
An apical dendrite is a dendrite that emerges from the apex of a pyramidal cell. [1] Apical dendrites are one of two primary categories of dendrites, ...
Neurons may lack dendrites or have no axons. The term neurite is used to describe either a dendrite or an axon, particularly when the cell is undifferentiated. Most neurons receive signals via the dendrites and soma and send out signals down the axon. At the majority of synapses, signals cross from the axon of one neuron to the dendrite of another.
A dendritic cell (DC) is an antigen-presenting cell (also known as an accessory cell) of the mammalian immune system.A DC's main function is to process antigen material and present it on the cell surface to the T cells of the immune system.
A unipolar neuron is a neuron in which only one process, called a neurite, extends from the cell body.The neurite then branches to form dendritic and axonal processes. Most neurons in the central nervous systems of invertebrates, including insects, are unipola
Most synapses connect axons to dendrites, [8] [9] but there are also other types of connections, including axon-to-cell-body, [10] [11] axon-to-axon, [10] [11] and dendrite-to-dendrite. [9] Synapses are generally too small to be recognizable using a light microscope except as points where the membranes of two cells appear to touch, but their ...
The cell undergoes a dramatic transformation from a polygonal shape to a cell that extends dendrites toward the mineralizing front, followed by dendrites that extend to either the vascular space or bone surface. [12] As the osteoblast transitions to an osteocyte, alkaline phosphatase is reduced, and casein kinase II is elevated, as is osteocalcin.