Spiral ganglion
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| Spiral ganglion | |
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| Transverse section of the cochlear duct of a fetal cat. (Ganglion spirale is labled at top, second from left.) | |
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| Part of the cochlear division of the acoustic nerve, highly magnified. | |
| Latin | ganglion spirale |
| Gray's | subject #228 1033 |
| MeSH | Spiral+ganglion |
The rudiment of the acoustic nerve appears about the end of the third week as a group of ganglion cells closely applied to the cephalic edge of the auditory vesicle. The ganglion gradually splits into two parts, the vestibular ganglion and the spiral ganglion. The proximal fibers of the spiral ganglion form the cochlear nerve.
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