Usually overuse by repetitive movements of the sinus tarsi from over pronation or an ankle sprain that is inverted are the two (2) reasons causing this area of pain. Both cause irritation and traumatic injury to the tissues that are located in the sinus tarsi.
Answer   Hydrogen is composed of one proton and one electron.   Some isotopes of hydrogen are slightly different. Deuterium contains one proton, one neutron, an â¦ d one electron. Tritium contains one proton, two neutrons, and one electron.
How do we distinguish between them? They each have one single proton (Z = 1), but differ in the number of their neutrons. Hydrogen has no neutron, deuterium has one, and tritium has two neutrons. The isotopes of hydrogen have, respectively, mass numbers of one, two, and three. Their nuclear symbols are therefore 1 H, 2 H, and 3 H. The atoms of these isotopes have one electron to balance the charge of the one proton.