Anterior median fissure
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| Anterior median fissure | ||
|---|---|---|
 | ||
| A spinal nerve with its anterior and posterior roots. | ||
| Latin | fissura mediana anterior medullae spinalis | |
| Gray's | subject #185 752 | |
| System | ||
| MeSH | [1] | |
 | ||
| Transverse section of the medulla spinalis in the mid-thoracic region. | ||
The Anterior Median Fissure has an average depth of about 3 mm., but this is increased in the lower part of the medulla spinalis.
It contains a double fold of pia mater, and its floor is formed by a transverse band of white substance, the anterior white commissure, which is perforated by blood vessels on their way to or from the central part of the medulla spinalis.
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