ANTIDROMIC FIELD POTENTIALS RECORDED FROM CELL GROUPS OF S2 SPINAL-CORD SEGMENT WITH AXONS IN THE OPPOSITE TH13 DORSOLATERAL FUNICULUS IN THE CAT

Location of cell groups within gray matter of S2 spinal cord segment, whose axons are running in the opposite Th13 dorsolateral funiculus, w ere studied by means of antidromic field potentials recorded in chlora lose anaesthetized cats. The cell bodies are forming six separate grou ps occupying medial laminae Il and III, medial laminae IV and V, media l lamina VII, medial lamina VIII, lateral laminae V and VI and lateral laminae VIII and IX. Properties of main components in antidromic fiel d potentials recorded in each of areas have been described. The presum able termination sites of axons of investigated cellular groups are co nsidered.