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28 Cards in this Set
- Front
- Back
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A hollow muscular organ that acts as a pump |
HEART |
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A 3 layered vessel that carries blood away from the heart |
ARTERY |
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Elastic large artery in the body that has a huge arch. |
AORTA |
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Veins that carry blood from the upper and lower torso of the body to the heart |
SUPERIOR AND INFERIOR VENA CAVA |
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The upper chambers of the heart. |
ATRIA |
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Depolorization of these gives you the QRS complex in an EKG. They are also chambers |
VENTRICLES |
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The only arteries of the body that carry deoxygenated blood and are a part of pulmonary circulation |
PULMONARY ARTERIES |
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This organ located on either side of the heart is responsible for the exchange of oxygen and carbon dioxide |
LUNGS |
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The veins that allow blood flow from the lungs to the heart and contain oxygenated blood |
PULMONARY VEINS (BOTH LEFT AND RIGHT) |
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These structures are flap-like and prevent back flow of blood in the heart. The closing of them gives you the LUB DUB sound |
VALVES |
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Located in the Right Atrium is know as the natural pacemaker and responsible for electrical conduction. Causes Atria to contract |
SA Node |
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Also responsible for electrical conduction and causes Ventricles to contract |
AV Node |
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The structure that seperates the left and right sides of the heart |
SEPTUM |
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Blood flows into this atrium first from the inferior and superior vena cava. |
RIGHT ATRIUM |
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refers to a complete heartbeat from its generation to the beginning of the next beat, and so includes the diastole, the systole, and the intervening pause |
CARDIAC CYCLE |
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Contractionof a chamber |
SYSTOLE |
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Relaxation of a chamber |
DIASTOLE |
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supplies blood to the left sideof the heart muscle and is part of systematic circulation |
LEFT CORONARY ARTERY |
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fibrous covering that wraps around the heart and holds it in place, also lubricates |
PERICARDIUM |
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the muscularlayer ofthe heart wall, consists of the muscle tissue. It consists of the majority ofthe thickness of the heart and is responsible for the pumpingaction of the heart. |
MYOCARDIUM |
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innermost layer that lines theinside of your heart, is a smooth lining that keeps blood fromsticking to the heart and prevents the formation ofpotentially harmful blood clots. |
ENDOCARDIUM |
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outermost layer of the heart, isa thin layer of membrane that lubricates and protects the outsideportion of the heart |
EPICARDIUM |
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Circulation that transports blood from the heart to the lungs and back to the heart |
PULMONARY CIRCULATION |
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Circulation that carries blood from the heart to the tissues in all parts of the bodyand then returns the blood to the heart |
SYSTEMATIC CIRCULATION |
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These structures have small lumen, under high blood pressure, no valves and usually carry oxygenated blood |
Arteries |
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These structures have, large lumen, under low pressure, contain valves and usually carry deoxygenated blood |
Veins |
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Waste products, nutrients and oxygen are exchanged between cells and _______________ |
Capillaries |
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What process allows substances to cross membranes, and is a passive process. (higher concentration to lower concentration) |
Diffusion |
