The basic Celtic Cross is a symbol comprising a conventional cross with a ring around the intersection of the stem and the arms (as per the more elaborate example above).
Biomedical science includes any course of scientific study related to biology as it affects health care. It includes classes such as physiology, anatomy, epidemiology, biochemistry, nutrition and kinesiology. Biomedical sciences are the foundation of knowledge for all health care professionals.
Physical science. Physical science, the systematic study of the inorganic world, as distinct from the study of the organic world, which is the province of biological science. Physical science is ordinarily thought of as consisting of four broad areas: astronomy, physics, chemistry, and the Earth sciences.