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Circulatory System Flashcards

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10993348492Systolethe phase of the heartbeat when the heart muscle contracts and pumps blood from the ventricles into the arteries.0
10993348493DiastoleRelaxation of the heart ventricles.1
10993348494Agglutinationprocess by which cells or other particles adhere to each other to form clumps.2
10993348495Anterior vena cavadrains deoxygenated blood from the upper body to the right atrium.3
10993348496AntibodyA protein that acts against a specific antigen.4
10993348497AntigenA protein that, when introduced in the blood, triggers the production of an antibody.5
10993348498AortaMajor systemic artery that receives blood from the left ventricle.6
10993348499ArterioleVessel that takes blood from an artery to capillaries.7
10993348500ArteryVessel that takes blood away from the heart.8
10993348501Atrioventricular (AV) valveseparates the atria from the ventricles (ex: tricuspid and bicuspid valves)9
10993348502Blood pressurethe force that blood exerts on the inside walls of the artery.10
10993348503CapillaryA tiny blood vessel where substances are exchanged between the blood and the body cells.11
10993348510HemoglobinRed iron-containing pigment in blood that combines with and transports oxygen.12
10993348517Plateletsmall blood fragment that collects at sites of injury to begin the clotting process13
10993348518Posterior vena cavadrains deO2 blood from lower body to right atrium14
10993348519Pulmonary arteryartery carrying oxygen-poor blood from the heart to the lungs.15
10993348520PulseBeat of the heart as felt through the walls of the arteries.16
10993348521Red blood cellBlood cells that carry oxygen from the lungs to the body cells.17
10993348527VenuleVessel that takes blood from the capillaries to a vein.18
10993348532Hypertensionhigher than normal blood pressure19
10993348534Inferior Vena Cavadrains deoxygenated blood from the lower body20
10993348536Pulmonary valvea semilunar valve that stops blood from backflowing from the pulmonary trunk back into the right ventricle21
10993348537Pulmonary veintakes O2 blood to the heart from the lungs.22
10993348540Semi-lunar valveValve with flaps resembling a half moon located between the ventricles and their attached blood vessels. (ex: pulmonary and aortic valves)23
10993348541Septumdividing wall between the 2 sides of the heart. keeps O2 and deO2 blood separate.24
10993348542Ventriclea lower (sending) chamber of the heart25

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