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Cardiovasc Short A


Describe capillaries. Join arterial system with venous system. Most significant. Provide cells with vital products. Remove waste products from cells.
Describe Heart. Hollow muscular organ lying in the mediastinum that propels blood to entire body.
Describe the SA node. Located in upper portion of the right atrium. Has built-in rhythm. Initiates and transmits each heart beat. Sets basic pace for cardiac rate.
How do veins return blood to the heart? Skeletal muscle contraction. Gravity. Respiratory activity. Valves.
How is blood supplied to the heart muscle? coronary arteries.
Name the factors that influence blood pressure Resistance of blood flow. Pumping action of heart. Viscosity of blood. Elasticity of arteries. Quantity of blood.
Name the four structures responsible for electrical conduction of the heart. SA node. AV node. Bundle of His. Purkinje fibers.
Name the 3 layers of the heart. Endocardium. Myocardium. Epicardium.
What are the 3 layers of artery walls? tunica externa. tunica media. tunica intima.
What are the 3 major types of blood vessels? Arteries. Capillaries. Veins.
What are valves? Small structures within veins that prevent backflow of blood.
What is endocarditis? Inflammation of the inner lining of the heart and its valves.
what type of blood do arteries carry? oxygenated blood.
What type of blood do veins carry? deoxygenated blood.
Where is each heart valve located? Tricuspid - right ventricle and right atrium. Pulmonic - pulmonary arteries and right ventricle. Bicuspid/mitral - left atrium and left ventricle. Aortic - aorta and left ventricle.
Created by: lexieeesmith



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