CRAT Exam PERICARDIUM
Pericardium - correct answer-Outer protective double-layered sac surrounding the heart.
Epicardium - correct answer-Thin outermost layer of the heart, contains coronary arteries.
Myocardium - correct answer-Middle muscular layer of the heart, contains electrical system.
Endocardium - correct answer-Inner most layer of the heart, lines chambers and valves.
Blood flow through the heart - correct answer-Venules --> Veins --> Superior/Inferior VC -->
Rt atria --> Tricuspid Valve --> Rt ventricle --> Pulmonary valve --> Pulmonary Artery -->
Lungs --> Pulmonary Veins --> Lt atria --> Bicuspid/Mitral valve --> Lt ventricle --> Aortic
Valve --> Aorta --> Arteries --> Arterioles --> Capillaries --> Body
Deoxygenated blood(left side of heart) - correct answer-Venules --> Veins -->
Superior/Inferior VC --> Rt atria --> Tricuspid Valve --> Rt ventricle --> Pulmonary valve -->
Pulmonary Artery
Oxygenated blood(right side of heart) - correct answer-Pulmonary Veins --> Lt atria -->
Bicuspid/Mitral valve --> Lt ventricle --> Aortic Valve --> Aorta --> Arteries --> Arterioles -->
Capillaries
Atrioventricular Valves(diastole) - correct answer-Valves between the atria and ventricles.
Tricuspid, Bicuspid/Mitral. Regulates blood flow IN the heart.
Semilunar Valves(systole) - correct answer-Pulmonary and Aortic valves separates
Ventricles from corresponding artery. Regulates blood flow OUT of the heart.
sinoatrial node (SA node) - correct answer-Primary pacemaker, 60-100bpm intrinsic rate
atrioventricular node (AV) node - correct answer-2nd pacemaker, 40-60bpm intrinsic rate
Bundle of His - correct answer-normal connection between atria and ventricles
bundle branches - correct answer-Branches off the Bundle of His that conduct impulses to
the left and right ventricles
Purkinje fibers - correct answer-conduction system terminates
Automaticity - correct answer-The ability of the heart to generate and conduct electrical
impulses on its own.
Excitability - correct answer-ability of cardiac cell to respond to an impulse
Conductivity - correct answer-The ability of cardiac cell to conduct/transmit an impulse.
Pericardium - correct answer-Outer protective double-layered sac surrounding the heart.
Epicardium - correct answer-Thin outermost layer of the heart, contains coronary arteries.
Myocardium - correct answer-Middle muscular layer of the heart, contains electrical system.
Endocardium - correct answer-Inner most layer of the heart, lines chambers and valves.
Blood flow through the heart - correct answer-Venules --> Veins --> Superior/Inferior VC -->
Rt atria --> Tricuspid Valve --> Rt ventricle --> Pulmonary valve --> Pulmonary Artery -->
Lungs --> Pulmonary Veins --> Lt atria --> Bicuspid/Mitral valve --> Lt ventricle --> Aortic
Valve --> Aorta --> Arteries --> Arterioles --> Capillaries --> Body
Deoxygenated blood(left side of heart) - correct answer-Venules --> Veins -->
Superior/Inferior VC --> Rt atria --> Tricuspid Valve --> Rt ventricle --> Pulmonary valve -->
Pulmonary Artery
Oxygenated blood(right side of heart) - correct answer-Pulmonary Veins --> Lt atria -->
Bicuspid/Mitral valve --> Lt ventricle --> Aortic Valve --> Aorta --> Arteries --> Arterioles -->
Capillaries
Atrioventricular Valves(diastole) - correct answer-Valves between the atria and ventricles.
Tricuspid, Bicuspid/Mitral. Regulates blood flow IN the heart.
Semilunar Valves(systole) - correct answer-Pulmonary and Aortic valves separates
Ventricles from corresponding artery. Regulates blood flow OUT of the heart.
sinoatrial node (SA node) - correct answer-Primary pacemaker, 60-100bpm intrinsic rate
atrioventricular node (AV) node - correct answer-2nd pacemaker, 40-60bpm intrinsic rate
Bundle of His - correct answer-normal connection between atria and ventricles
bundle branches - correct answer-Branches off the Bundle of His that conduct impulses to
the left and right ventricles
Purkinje fibers - correct answer-conduction system terminates
Automaticity - correct answer-The ability of the heart to generate and conduct electrical
impulses on its own.
Excitability - correct answer-ability of cardiac cell to respond to an impulse
Conductivity - correct answer-The ability of cardiac cell to conduct/transmit an impulse.
