Nerve fiber = multicellular, containing both an axon and surrounding myelin sheath. The axon comes from a single neuron, but the myelin sheath is made by a train of many myelinating Schwann cells. In the case of unmyelinated axons, the unmyelinated fiber shares each Schwann cell with several other unmyelinated axons.
Flat feet (pes planus) occur when a child has no arch in their foot. Because an arch does not form, the foot appears to turn to the outside. Children with out-toeing due to flatfeet will rarely experience pain symptoms will not require treatment.
Long Term Effects of In-Toed Gait: Foot Damage. Intoeing itself is usually not serious, but in some cases children will flatten their foot in order to make their foot look less in-toed. When the foot is flatted, the front of the foot moves outward giving the illusion that the foot is less pigeon toed. In fact, however, this type of compensation can damage the foot. Children often compensate like this when they are told by parents or grandparents to walk with their feet straight.