Chapter 23 - Demyelinating diseases of the nervous system. Introduction. This group of diseases (see Table 23-1) is characterized by lesions that are associated with loss of myelin with relative sparing of axons. There are many type of disease that damage myelin in concert with the destruction of axons.
A realm is an area that is ruled by something. If you are a controlling cook who doesnât like anyone to do anything else in the kitchen, then the kitchen is your realm. Realm comes from the French for kingdom, but since there arenât so many kings or queens left in the world, youâll more often find it referring to non-royal spheres. That could be the sphere of a special kind of knowledge, like the realm of biology, or the political realm.
Lanka /ËlÉÅkÉË/ is the name given in Hindu mythology to the island fortress capital of the legendary demon king Ravana in the epics of the Ramayana and the Mahabharata. The fortress was situated on a plateau between three mountain peaks known as the Trikuta Mountains.