The anterior horn cells, although technically part of the central nervous system (CNS), are sometimes discussed with the peripheral nervous system because they are part of the motor unit. In the peripheral nervous system, bundles of nerve ï¬bers or axons conduct information to and from the central nervous system.
Medical Definition of arciform. : having the form of an arch lesions of tinea corporis in arciform configurations.
Terms. 1  Arc - Two endpoints on a circle and all of the points on the circle between those two endpoints. 2  Center - The point from which all points on a circle are equidistant. 3  Central Angle - An angle whose vertex is the center of a circle.  Chord - A segment whose endpoints are on a circle.