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34 Cards in this Set
- Front
- Back
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Arteries
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large blood vessels that lead away from the heart
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Endothelium
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Innermost lining of blood vessels
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arteriole
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small artery
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Capillaries
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smallest blood vessels
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venule
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small vein
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vein
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thin-walled blood vessel that carries blood from the body tissues and lungs to the heart
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vena cava
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largest vein in the body
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pulmonary artery
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an artery carrying oxygen-poor blood from the heart to the lungs
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aorta
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Largest artery in the body
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artery
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largest type of blood vessel. Carries blood away from the heart to all parts of the body
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atrioventricular bundle (bundle of his)
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specialized muscle fibers in the wall between the 2 upper heart chambers.
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atroventricular node (AV node)
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specialized tissue at the base of the wall between the 2 upper heart chambers
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atrium (plural:atria)
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upper chamber of the heart
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carbon dioxide (CO2)
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a gas (waste) released by body cells and transported via veins to the heart and then to the lungs to be expelled
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Coronary arteries
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the blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle
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deoxygenated blood
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blood that is oxygen-poor.
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diastole
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relaxation phase of the heartbeat.
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endocardium
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Inner lining of heart
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mitral valve
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valve found between the left atrium and the left ventricle of the heart valves.
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murmur
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an abnormal heart sound caused by improper closure of the heart valves.
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myocardium
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muscle layer of the heart.
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oxygen
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gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells.
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pacemaker
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sensitive tissue in the right atrium that begins the heartbeat. also called the sinoatrial node.
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pericardium
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Sac-like membrane surrounding the heart
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pulmonary circulation
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The flow of blood from the heart to the lungs and back to the heart.
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pulse
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the beat of the heart as felt through the walls of the arteries.
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septum (plural septa)
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A partition;in the cardiovascular system, a partition between the right and the left sides of the heart.
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sinoatrial node (SA node)
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The pacemaker of the heart.
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sphygmomanometer
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instrument to measure blood pressure
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systemic circulation
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The flow of blood from the body cells to the heart and then back out from the heart to the cells
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systole
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The contraction phase of the heartbeat.
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tricuspid valve
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Valve located between the right atrium and the right ventricle; it has 3(tri-) leaflets, or cusps
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valve
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a structure in veins or in the heart that temporarily closes an opening so that blood flows in only 1 direction
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ventricle
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lower and larger chamber of the heart
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