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Science #

Chapter 19 Vocabulary

TermDefinition
pulmonary having to do with the lungs
cardio/cardiac having to do with the heart
stroke blood clot or hemorrhage/bleeding in the brain
stent a wire mesh tube used to prop open an artery that has been widened by angioplasty
septum wall of muscle that separates the left and right sides of the heart
valve flap of tissue that helps keep blood flowing in one direction
natural pacemaker mass tissue in the right atrium that regulates the heartbeat
artery a blood vessel that carries blood away from the heart
capillary a microscopic thin-walled blood vessel
aneurysm a swollen, blood-filled weak spot in the wall of a blood vessel
angioplasty medical procedure in which a tiny balloon is used to widen/open partially clogged arteries
vein a blood vessel that carries blood back to the heart
lymphatic system carries lymph through a network of lymph capillaries and vessels, and drains it into large veins near the heart; help fight infections and disease
lymph nodes bean-shaped organs found throughout the body that filter out microorganisms and foreign materials taken up by lymphocytes
lymphocyte a type of white blood cell that fights infection
hemoglobin a part of a red blood cell that carries oxygen and carbon dioxide; made of an iron compound that gives blood its red color
plasma liquid part of blood, made mostly of water, in which oxygen, nutrients, and minerals are dissolved
lymph tissue fluid that has diffused into lymphatic capillaries
pulmonary circulation the flow of blood through the heart to the lungs and back to the heart
systemic circulation when oxygen-red blood moves to all the body organs and tissues except for the heart
coronary circulation the flow of blood to and from the tissues of the heart
atriums/atria upper heart chambers that collect blood (contract at the same time)
platelets irregularly shaped cell fragments that help clot blood
ventricles lower heart chambers that pump blood (contract at the same time)
Created by: jrobertson1
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