Posterior proper fasciculus
Encyclopedia
The posterior proper fasciculus (posterior ground bundle; posterior basis bundle) arises from cells in the posterior column
Posterior column
thumb | right | Cross-section of the spinal cord Posterior column or dorsal column refers to the area of white matter in the dorsomedial side of the spinal cord. It is made up of the fasciculus gracilis and fasciculus cuneatus and itself is part of the dorsal funiculus...

; their axons bifurcate into ascending and descending branches which occupy the ventral part of the funiculus
Funiculus
The cerebrospinal fibers consist of numerous nerve fibers collected together and enclosed in membranous sheaths. A small bundle of fibers, enclosed in a tubular sheath, is called a funiculus; if the nerve is of small size, it may consist only of a single funiculus; but if large, the funiculi are...

 close to the gray column.

They are intersegmental and run for varying distances sending off collaterals and terminals to the gray matter
Gray Matter
"Gray Matter" is a short story by Stephen King, first published in the October 1973 issue of Cavalier magazine, and later collected in King's 1978 collection Night Shift. It is set in the same area as King's novel Dreamcatcher.-Setting:...

.

See also

  • Lateral proper fasciculus
    Lateral proper fasciculus
    The lateral proper fasciculus constitutes the remainder of the lateral column, and is continuous in front with the anterior proper fasciculus....

  • Anterior proper fasciculus
    Anterior proper fasciculus
    The remaining fibers of the anterior funiculus constitute what is termed the anterior proper fasciculus, fasciculus proprius, or fasiculus proprii .It consists of...

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