BIOL130 Chapter Notes - Chapter 7: Sphygmomanometer, Cellular Respiration, T Cell
6 Sep 2016
School
Department
Course
Professor
Document Summary
Brings oxygen & nutrients to cells; takes wastes away from cells; relays chemical messages throughout the body; Helps maintain acceptable levels of fluid; is important in the body"s immune system, permitting the transport of immune cells throughout the body; Blood is considered a tissue (and not a cell) because it is composed of many different types of cells. Approximately 55% of blood is composed of a fluid called plasma. Plasma contains blood proteins: albumins: maintain body fluid level through osmosis (draws water back into the capillaries, globulins: provide protection against invading microbes (anti-bodies, immunity, fibrinogens: blood clotting protein. 45% of blood is made up of three types of blood cells. Blood is composed mainly of water, plasma, and blood cells. Plasma proteins play roles in maintaining homeostasis, in producing anti-bodies, and in blood clotting. Once they leave, they become enucleated and can no longer reproduce.
