|Anterior median fissure|
|A spinal nerve with its anterior and posterior roots.|
|Latin||fissura mediana anterior medullae spinalis|
|Gray's||subject #185 752|
|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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