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.
3. A curve with the ends down and the middle up: the arch of a raised eyebrow. 4. Anatomy An organ or structure having a curved or bowlike appearance, especially either of two arched sections of the bony structure of the foot. v. arched, archÂ·ing, archÂ·es.v. tr. 1.. any of various parts or structures of the body having a curved or archlike outline, such as the transverse portion of the aorta (arch of the aorta) or the raised bony vault formed by the tarsal and metatarsal bones (arch of the foot).