Hereditary neuropathies are diseases of the peripheral nerves that are genetically passed from parent to child. The most common of these is Charcot-Marie-Tooth disease type 1. It is characterized by weakness in the legs and, to a lesser degree, the arms -- symptoms that usually appear between mid-childhood and age 30.
1 Chlorine ions are colored yellow in the VRML model. 2  Sodium (Na +) and potassium (K +) are positive ions. 3  They are found on both sides of the membrane. 4  Na + ions are in greater concentration outside the neuron whereas K + ions are more concentrated inside the neuron. 5  Na + ions are colored pink in the VRML model.
The answer is sodium (Na) <br /> At the normal resting potential, the cell must bail out sodium ions that leak in and recapture potassium ions that leak out. The bailing occurs through the activity of an exchange pump powered by <b>ATP</b>. This pump's primary significance is that it ejects sodium ions as quickly as they enter the cell.