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Haneyapc13

APch13

QuestionAnswer
Sends oxygen-depleted blood to the lungs to pick up oxygen and unload carbon dioxide Pulmonary ciruit
Sends oxygen-rich blood and nutrients to all body cells and removes waste Systemic circuit
The heart is within the_______ Mediastinum
Encloses the heart and the proximal ends of the large blood vessels to which it attaches Pericardium
Outer layer of the wall of the heart that protects the heart by reducing friction Epicardium
Thick middle layer of the wall of the heart Myocardium
Inner layer of the wall of the heart Endocardium
Upper chambers of the heart that recieve blood returning to the heart Atria
Lower chambers of the heart that recieve blood from the atria and contract to force blood out of heart into arteries Ventricles
Separates the atrium and ventricle on the right side from their counterparts on the left Septum
Opening between right atrium and right ventricle Tricuspid valve
Entrance to pulmonary trunk Pulmonary valve
Opening between left atrium and left ventricle Mitral valve (Bicuspid)
Entrance to aorta Aortic valve
Supply blood to the tissues of the heart Coronary arteries
Phase of the cardiac cycle when a heart chamber wall contracts Systole
Phase of the cardiac cycle when a heart chamber wall relaxes Diastole
A mass of merging cells that function as a unit Functional syncytium
Coordinates the events of the cardiac cycle Cardiac conduction system
A decrease in the diameter of a blood vessel Vasocolstriction
An increase in the diameter of a blood vessel Vasodilation
Carries blood under relatively high pressure from heart to arteioles Artery
Connects an artery to a capillary Arteriole
Connects an arteriole to a venule Capillary
Connects a capillary to a vein Venule
Carries blood under relatively low pressure from a venule to the heart Veins
The volume of blood discharged from the ventricle with each contraction Stroke volume
The volume discharged from the ventricle per minute Cardiac output
Equals the sum of the formed elements and plasma volumes in the vascular system Blood volume
A force produced by friction between the blood and the walls of blood vessels Peripheral resistance
The ease with which a fluid's molecule flow past one another Viscosity
Created by: mhtgroup