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.
Noun. 1. crescent-any shape resembling the curved shape of the moon in its first or last quarters. curve, curved shape-the trace of a point whose direction of motion changes.rescent-any shape resembling the curved shape of the moon in its first or last quarters. curve, curved shape-the trace of a point whose direction of motion changes.