The term subarachnoid hemorrhage (SAH) refers to extravasation of blood into the subarachnoid space between the pial and arachnoid membranes. SAH constitutes half of all spontaneous atraumatic intracranial hemorrhages; the other half consists of bleeding that occurs within the brain parenchyma.
Definitions and images to illustrate geological terms, links to images and website articles. Assimilation is that process of magmatic differentiation whereby ascending magmas evolve chemically by recruiting easily melted or dissolved components (fusibles) from the walls of their conduits. Under the agency of heat and magmatic fluids, ascending magmas pick up volatiles, silica, trace elements, and occassionally fragments of wall rock.
474 pages on this wiki. Assimilation is where an organism uses molecules which have been absorbed from external substances (e.g. food) and makes them part of the organism.xamples of assimilation include the absorption of nutrients into the body after digestion in the intestine, and their transformation into other molecules; and photosynethesis. This article is a stub, and is very fishy. You can help GCSE Wiki by expanding it, removing the non-GCSE content or improving it.