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Science chap.16

Circulation and Blood

aorta the main trunk of the arterial system, conveying blood from the left ventricle of the heart to all of the body except the lungs
arteries pertaining to the blood in the pulmonary vein, in the left side of the heart , having been oxygenated during its passage through the lungs and being normally bright red
atrial of or relating to a cavity or chamber in the body (especially one of the upper chambers of the heart)
blood the fluid that circulates in the principal vascular system of human beings and other vertebrates, in humans consisting of plasma in which the red blood cells, white blood cells, and platelets are suspended
blood transfusion the injection of blood from one person or animal into the bloodstream of another
blood type the process of classifying blood into blood groups, based on laboratory tests to reveal the presence or absence of particular antigens on the surface of red blood cells
blood vessels any of the vessels, as arteries, veins, or capillaries, through which the blood circulates
capillaries pertaining to or occurring in or as if in a tube of fine bore
circulation to pass from place to place
heart a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood
hemoglobin the oxygen-carrying pigment of red blood cells that gives them their red color and serves to convey oxygen to the tissues: occurs in reduced form (deoxyhemoglobin) in venous blood and in combination with oxygen (oxyhemoglobin) in arterial blood
lacteals pertaining to, consisting of, or resembling milk; milky
lymph a clear yellowish, slightly alkaline, coagulable fluid, containing white blood cells in a liquid resembling blood plasma, that is derived from the tissues of the body and conveyed to the bloodstream by the lymphatic vessels.
lymph nodes any of the glandlike masses of tissue in the lymphatic vessels containing cells that become lymphocytes
lymph vessels tubes that transport lymph through the body
plasma the liquid part of blood or lymph, as distinguished from the suspended elements
platelets a small platelike body
pulse rate the rate at which the heart beats; usually measured to obtain a quick evaluation of a person's health
red blood cells one of the cells of the blood, which in mammals are enucleate disks concave on both sides, contain hemoglobin, and carry oxygen to the cells and tissues and carbon dioxide back to the respiratory organs
septum a dividing wall, membrane, or the like, in a plant or animal structure; dissepiment
valves any device for halting or controlling the flow of a liquid, gas, or other material through a passage, pipe, inlet, outlet, etc
veins one of the system of branching vessels or tubes conveying blood from various parts of the body to the heart
ventricles either of the two lower chambers on each side of the heart that receive blood from the atria and in turn force it into the arteries
white blood cells any of various nearly colorless cells of the immune system that circulate mainly in the blood and lymph and participate in reactions to invading microorganisms or foreign particles, comprising the B cells, T cells, macrophages, monocytes, and granulocytes
Created by: daisy37311