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Science Vocabulary 7

Science Words To Learn

TermDefinition
Alveoli any of the many tiny air sacs of the lungs which allow for rapid gaseous exchange.
Nephron (s) each of the functional units in the kidney, consisting of a glomerulus and its associated tubule, through which the glomerular filtrate passes before emerging as urine.
Deoxygenated remove oxygen from.
Oxygenated supplied, treated, or enriched with oxygen.
Valve(s) a device for controlling the passage of fluid or air through a pipe, duct, etc., especially an automatic device allowing movement in one direction only.
Septum a partition separating two chambers, such as that between the nostrils or the chambers of the heart.
Artery any of the muscular-walled tubes forming part of the circulation system by which blood (mainly that which has been oxygenated) is conveyed from the heart to all parts of the body.
Vein(s) any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
Capillary any of the fine branching blood vessels that form a network between the arterioles and venules, a tube that has an internal diameter of hairlike thinness.
Ventricle(s) a hollow part or cavity in an organ.
Atrium (atria) each of the two upper cavities of the heart from which blood is passed to the ventricles. The right atrium receives deoxygenated blood from the veins of the body; the left atrium receives oxygenated blood from the pulmonary vein.
Pulse a rhythmical throbbing of the arteries as blood is propelled through them, typically as felt in the wrists or neck.
Lymphocyte(s) a form of small leukocyte (white blood cell) with a single round nucleus, occurring especially in the lymphatic system.
Antibody a blood protein produced in response to and counteracting a specific antigen.
Plasma the liquid part of blood or lymph, as distinguished from the suspended elements.
Immunity (passive/active) the ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.
Platelets a small colorless disk-shaped cell fragment without a nucleus, found in large numbers in blood and involved in clotting.
Antigen a toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.
Agglutination the clumping of particles.
Pathogen a bacterium, virus, or other microorganism that can cause disease.
Vena cava a large vein carrying deoxygenated blood into the heart, the inferior vena cava (carrying blood from the lower body) and the superior vena cava (carrying blood from the head, arms, and upper body).
Aorta the main artery of the body, supplying oxygenated blood to the circulatory system. In humans it passes over the heart from the left ventricle and runs down in front of the backbone.
Created by: 1011018