Anterior white commissure

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Anterior white commissure of the spinal cord
Fig. 664– Transverse section of the medulla
spinalis in the mid-thoracic region.
The white commissure is highlighted in green.
Latin alba anterior medullae spinalis
Dorlands/Elsevier c_49/12251955

The anterior (or ventral) white commissure, also known as the alba anterior medullae spinalis, is a bundle of nerve fibers which cross the midline of the spinal cord just anterior to the gray commissure (Rexed lamina X). and C fibers carrying pain sensation in the spinothalamic tract contribute to this commissure, as do fibers of the anterior corticospinal tract, which carry motor signals from the primary motor cortex.