transmit the sensory impulse to the appropriate part of the brain or spinal cord for interpretation and processing; also known as association neurons.
depth. 1  the distance from the top downward, from the surface inward, or from front to back. 2  perspective, as in a painting. 3  the quality or condition of being deep; deepness; specif., 4  intensity, as of colors, silence, or emotion.
dimension. 1  a measurable extent, as length, width, or depth. 2  a hypothetical extension or continuum beyond these, in any of various physical or abstract systems: a theory involving higher dimensions. 3  measurements in length and width, and often depth.