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| consists of the vascular system, the heart, and the blood that travels through these organs. The cardiovascular system and the lymphatic system make up the circulatory system. |
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| components of the vascular system that carry blood through the body. Include arteries, veins, and capillaries |
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| carry blood from the heart |
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| bring blood back to the heart |
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| tiny thin-walled blood vessels that create a net of channels between the smallest arteries and the smallest veins |
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| the wave of blood that flows into an artery that corresponds with the contraction of the heart muscle |
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| the smallest arteries, lack the elasticity of the major arteries because they do not have a connective tissue sleeve |
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| interconnected networks of vessels. The exchange of gases, nutrients, and wastes only occurs in these |
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| surround the arterial ends of capillary beds. Can contract to cut off blood flow through the bed. |
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| small vessels that collect blood from the downstream end of a capillary bed. they drain into veins |
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| physical process in which pressure in the abdominal cavity increases while pressure in the chest cavity decreases while breathing occurs. Abdominal veins become compressed and thoracic veins dilate |
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| collects excesss liquid from capillary beds. parallel to the vascular system. |
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| fluid from from the the tissues along with patrolling white blood cells that drain into open-ended lymphatic capillaries |
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| when multiple lymph vessels merge together, lymph ducts return lymph to veins in the chest |
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| the force of blood against arterial walls, created in part by the pulse of blood ejected from the contracting heart. Elasticity of artery walls dampens pulse, keeps BP steady. |
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| chronically high blood pressure |
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| accumulation of plaques within the walls of the arteries |
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| device that measures blood pressure. |
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| highest pressure in the artery. |
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| lowest blood pressure in the artery |
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| a bulge in a blood vessel that can become a rupture. |
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| when blockages occur in blood vessels serving the brain, and part of the brain tissue dies |
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| the portal from the left ventricle to the rest of the body. |
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| a pump implanted in the chest that takes the place of a heart. Powered by a battery that a person wears on their hip |
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| valves that connect the atria and ventricles in the heart. On the right side, it's the tricuspid valve, on the left, the bicuspid |
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| thin-walled, elastic. one of the parts of the pump in the heart. Right side receives oxygen poor-blood from the body and sends it to the lungs, the Left takes blood from the lungs and sends it to the body. |
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| .... for real? muscly organ that pumps blood through the body |
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| when a heart's ability to pump blood through the body is impaired, sometimes due to heart attacks and problems with coronary circulation. |
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| heart valve malfunction that sounds like swishing or whistling in a stethoscope |
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| direct connection between most of the organs of the digestive system and the liver, which processes and detoxifies many of the components that enter the body through diet |
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| major vein that carries blood from the abdomen and legs |
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| a membranous sac that holds a small quantity of lubricating liquid and surrounds the heart |
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| line from the right atrium to the lungs |
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| part of the c-v system that moves blood into the lungs and returns it to the heart |
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| where oxygen picked up by the bloodstream at the lungs returns to the heart |
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| valves that blood pumped out of the heart passes through, named for the half-moon-shaped flaps they contain. they close after each heart contraction |
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| major vein that carries blood from the head, neck, and arms |
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| part of the c-v system that pumps blood from the heart to the rest of the body |
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| thick-walled, other half of the pump mechanism of the heart |
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| device that overrides the SA node, provides steady heart rhythm, implanted in the chest. |
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| atriventricular (AV) node |
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| site that sends electrical signal from SA node to rest of the heart through neurons |
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| when the heart suddenly stops beating, usually caused when electrical impulses in the heart become too fast |
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| the complete sequence within the heart of filling with blood and then pumping it out |
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| cardiopulmonary resuscitation (CPR) |
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| compressing the chest to force blood through the vascular system. provides limited replacement for a nonpumping heart, but rarely triggers heart back into action |
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| metal paddles that deliver a strong electric current tot he chest, used to reverse fibrillation |
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| relaxed period that allows blood to flow into the heart |
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| graph that shows the electrical output of the heart |
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| when the heart muscle contracts chaotically |
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| acts as the heart's pacemaker by sending out electricla signals |
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| contracion phase of the cardiac cycle |
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| Chest discomfort, caused by the gradual reduction of blood flow through coronary arteries during exertion. |
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| a procedure that increases the internal diameter of coronary blood vessels by compressing plaques against the vessel walls. Done with severe blockages |
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| veins from the heart that drain into the right atrium |
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| the vessels that bring blood to the heart muscles from the aorta |
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| procedure where new blood vessels are attached to the heart to carry blood past the blocked arteries |
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| a blockage in the coronary arteries |
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| layman's term for a myocardial infarction |
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| myocardial infarction (MI) |
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| when a blockage in a coronary artery restricts or stops blood flow |
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