Namenda XR. Uses. Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease. It does not cure Alzheimer's disease, but it may improve memory, awareness, and the ability to perform daily functions.
The lithosphere, which is the rigid outermost shell of a planet (the crust and upper mantle), is broken up into tectonic plates. The Earth's lithosphere is composed of seven or eight major plates (depending on how they are defined) and many minor plates.
Tectonic plates are segments of the Earth's lithosphere, the hard  rocky outer shell composed of the crust and the uppermost mantle.  This shell is divided by lines of faultâ¦s, ridges of plate creation,  and zones of plate destruction.