BIOL 1002 Chapter : Chapter 32 Part 1 Circulation
Document Summary
How the lymphatic system works with the circulatory system: as animals got larger, the need for circulation (and circulatory systems) arose. Larger distances requires some energy requiring process: diffusion is not effective to get the food & oxygen to cells and wastes away, circulation is required. There are two types of circulatory systems (fig. Part of the channel that the fluid circulates through is an open space within the body called the hemocoel (blood cavity). Tissues and organs are bathed by hemolymph (acts like blood), which acts as both blood and the extracellular fluid that bathes all cells. Earthworms (amelids: active mollusks, octopuses squid, all vertebrates-also includes, fish, mammals, reptiles, humans. The blood is usually confined( closed) in the vessels. Closed systems allow more rapid blood flow, more efficient transport of dissolved substances, and higher blood pressure than is possible in open systems. There are 7 major functions of circulatory systems.
