Fasciculus gracilis

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Fasciculus gracilis
Fasciculus cuneatus is 3a, in blue at upper right.
Latin	f. gracilis medullae spinalis
Gray's	subject #185 762
System
MeSH	[1]
Diagram of the principal fasciculi of the spinal cord.

The fasciculus gracilis (tract of Goll) is wedge-shaped on transverse section, and lies next the posterior median septum, its base being at the surface of the medulla spinalis, and its apex directed toward the posterior gray commissure.

It increases in size from below upward, and consists of long thin fibers which are derived from the posterior nerve roots, and ascend as far as the medulla oblongata, where they end in the nucleus gracilis. It brings in sensory impulses from lower body.

Additional images

Decussation of pyramids.

Superficial dissection of brain-stem. Lateral view.

Superior terminations of the posterior fasciculi of the medulla spinalis.

The sensory tract.

Upper part of medulla spinalis and hind- and mid-brains; posterior aspect, exposed in situ.

External links

• Dictionary at eMedicine gracile+fasciculus
• Neuroanatomy at UW sc97/text/p1/Pathway.htm

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 As such, some of the information contained herein may be outdated.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.