foimatio

(for-ma's hyo) [L. from form are, to form.] A range ment, f. al'ba, the mesal portion of the f reticular is, in which the white fibers preponderate. f. gris'ea, the lateral portion of the f reticular is in which the gray matter preponderates, f reticula'ris, reticular formation, subs tanti a reticular is (i) a number of small groups of ganglion cells, interspersed with nerve-fibers, to the outer side of the several nuclei in the tegmentum of the pedunculus cerebri; (2) a network of gray matter enclosing small islands of white matter (as seen on cro section) in the angle between the anterior and posterior gray columns or horns of the spinal cord.