The heart is a pumping system which takes in deoxygenated blood through the veins and delivers it to the lungs for oxygenation before pumping it into the various arteries (which provide oxygen and nutrients to body tissues by transporting the blood throughout the body).he cardiovascular system of the head and neck includes the vital arteries that provide oxygenated blood to the brain and organs of the head, including the mouth and eyes. It also includes the veins that return deoxygenated blood from these organs to the heart.
the part of the alimentary canal extending from the pyloric opening of the stomach to the anus. It is a membranous tube, comprising the small intestine and large intestine; called also bowel and gut. See also intestinal tract, and see color plates.
the bowel is defined as the inner part of something a tiny office in the basement of a building on a big campus is an example of an office in the bowels of the campus the part of your intestines between your stomach and your anus is an example of your bowel an intestine esp of a human being gut usually used in pl the interior or inner part the bowels of the mountain archaic the inside of the body regarded as the source of pity tenderness etc hence tender emotions