Bipolar cell
From Psychology Wiki
| Bipolar cell | ||
|---|---|---|
 | ||
| Bipolar nerve cell from the spinal ganglion of the pike. | ||
| Latin | ' | |
| Gray's | subject #183 722 | |
| System | ||
| MeSH | [1] | |
| [[Image:|190px|center|]] | ||
A bipolar cell is a type of neuron which has two extensions.
The most common examples are the bipolar cell of the retina, and the ganglia of the vestibulocochlear nerve.[1] When used without further detail, the term usually refers to the retinal cells.
Bipolar cells are also found in the spinal ganglia, when the cells are in an embryonic condition.
They are best demonstrated in the spinal ganglia of fish.
Sometimes the processes come off from opposite poles of the cell, and the cell then assumes a spindle shape; in other cells both processes emerge at the same point.
In some cases where two fibers are apparently connected with a cell, one of the fibers is really derived from an adjoining nerve cell and is passing to end in a ramification around the ganglion cell, or, again, it may be coiled spirally around the nerve process which is issuing from the cell.
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
