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.
When you first set out on your journey to select the perfect pair of shoes for your flat feet, there are three tests you can do while purchasing to make sure youâre getting the correct support you need. 1  If the shoe bends where the toes are, itâs supportive enough, but if it bends toward the middle, it is not going to have the support you need.