Synapse
... Anatomy At a prototypical synapse, such as a
dendritic spine , a mushroom-shaped bud projects from each of two cells and the caps of these buds press flat against one another. At this interface, the membranes of the two cells flank each other across a slender gap, the narrowness of which enables sign...
Neuron
.... Each neuron has very many dendrites with profuse
dendritic branches. These structures form the main information receiving network for the neuron. Axon and dendrites alike are typically only about a micrometre thick, while the soma is usually about 25 micrometres in diameter and not much larger than than ...
Major histocompatibility complex
... specialized cell types, including macrophages ,
dendritic cells , activated T cells , and B cells , which may be referred to collectively as "antigen-presenting cells" (APCs). Class II molecules are also heterodimers , but in this case consist of two homologous peptides, an α and β chain, bot...
Immune system
...tegory of APCs involved in T cell activation, the
dendritic cells , are part of the innate immune system. Acti... belonging to the adaptive immune system. But the
dendritic cells are often directly activated by engaging their toll like receptors , getting their "second s...
Dendrite
..., meaning "tree". Compare : axon See also :
dendritic spine...
Apoptosis
...ce Online in December, 2001. Albert described how
dendritic Cells, a type of antigen-presenting cells, phagocy...ulf) apoptotic tumor cells. Upon maturation, these
dendritic cells present antigen (derived from the apoptotic corpses) to killer T cells, which are then primed ...