Cardiology CHAPT 22 Flashcards
Venules
Smallest branches of veins that connect capillaries to veins
Capillaries
Smallest most numerous of the blood vessels, connect arterioles and venules and function as exchange vessels
Arterioles
Smallest branch of arteries that connect arteries to capillaries
Right Atrium
Receives deoxygenated blood from the Sup. Vena cava and the Inf. Vena Cava
What is the purpose of a heart valve?
To prevent the back flow of blood, making sure blood flows in one direction through the heart chambers
Right Ventricle
Pumps blood to the lungs
Fibrous Parietal Pericardium
Rough outer layer of the pericardium that anchors the heart to the sternum and the diaphragm
Serous Pericardium
Inner layer of the pericardium that has 2 layers of its own: parietal and visceral
Who pioneered AED and Mobile Coronary Care?
Frank Pantride; MD
Kouwenhoven’s external defibrillator was made in what year?
1957
Epicardium
Outermost layer of the heart that contains blood capillaries, lymph capillaries, nerve fibers and fat
Pericardium
Double walled sac that encloses the heart and help protect it from trauma and infection
Coronary Artery Disease (CAD)
Effects the arteries that supply blood the heart muscle
Coronary Heart Disease
Disease of the coronary arteries and their resulting complications; such as Angina Pectoris or Acute MI.
most common cause of cardiovascular disease death
Myocardium
Middle layer of heart; specialized muscle; thick muscular wall that consists of cardiac muscle fibers responsible for the pumping action of the heart
Endocardium
Inner most layer of the heart, thin smooth layer of epithelium and connective tissue that lines the hearts inner chambers, valves, chord tendinae, and papillary muscles
Interventricular Septum
Divides left and right ventricles
Left Ventricle
Pumps blood the body
Veins
Capitance vessels that carry deoxygenated blood from the body to the right side of the heart
Tricuspid Valve
Valve between right atria and right ventricle that has 2 separate cusps or flaps
Mitral Valve (bicuspid)
Valve that separates left atria from left ventricle and has 2 cusps.
Paul Zoll pioneered the AC Defibrillator in what year? Why was it rejected?
1956, rejected due to tissue damage it caused
Papillary Muscles
Muscles attached to the chordae tendinae of the heart valves and the ventricular muscle of the heart
Chordae Tendinae
Thin strands of fibrous connective tissue that extends from AV valves to the papillary muscles that prevent the AV valves from bulging back into the atria during ventricular contraction
Low Fluid volume causes what type of shock?
Hypovolemic (Hemorragic and non Hemorragic)
Chest compressions found in what year?
1958
What year did Dr. Lowe make the first DV Defibrillator/Cardioverter
1961
