A is the first letter
Pooling of fluid in the abdomen.
What is Ascites?
The amount of blood pumped by the heart in 1 minute
What is the Cardiac output?
Accumulation of fluid in the lungs
What is Pulmonary edema?
Contractions of the chambers of the heart
What is systole?
The unique ability of the cardiac muscle to contract without nervous stimulation
What is Automaticity?
Pointed end of the heart, the location of the point of maximum impulse
What is the Apex?
Vessels that deliver oxygenated blood to the myocardium
What are coronary arteries?
The membranous fibroserous sac enclosing the heart and the bases of the great vessels
What is the Pericardium?
The amount of blood ejected by the heart with each beat
What is stroke volume?
Pressure sensors in the aorta and carotid arteries that detect changes in blood pressure; also called pressoreceptors
What are Baroreceptors?
Heart valve that prevents backflow from the aorta to the left ventricle
What is the aortic valve?
Large transverse vein on the heart’s posterior that returns blood to the right atrium
What is the Coronary Sinus?
The amount of tension, or stretch, in the ventricular muscle just before it contracts.
What is preload?
Semi-rigid, fibrous connective tissue encircling each heart valve
What is the skeleton of the heart?
Sensors in the aortic arch, carotid arteries, and medulla that detect increased levels of carbon dioxide, decreased levels of oxygen, and decreases in pH
What are Chemoreceptors?
Group of pacemaker cells in the interatrial septum that relays impulses from the atria to the ventricles
What is the atrioventricular (AV) Node?
Tendinous cords that connect the edges of the AV valves to the papillary muscles to prevent inversion of the valve during ventricular systole
What is the Chordae tendineae?
Space between the parietal and visceral layers of the pericardium that contains a small amount of serous fluid
What is the pericardial cavity?
The heart’s primary pacemaker, where normal cardiac impulses arise
What is the Sinoatrial node?
The right atrioventricular valve, which regulates flow between the right atrium and right ventricle
What is the Tricuspid valve?
Atrial contraction that occurs late in the ventricular filling process; supplies the ventricles with the remaining 30% of blood
What is the atrial kick?
Sensors in the aortic arch, carotid arteries, and medulla that detect increased levels of carbon dioxide, decreased levels of oxygen, and decreases in pH
What are chemoreceptors?
Nerve-like processes that extend from the bundle branches to the ventricular myocardium; form the last part of the cardiac conduction system
What are the Purkinje Fibers?
States that the more the ventricle is stretched (within limits), the more forcefully it will contract
What is Starling's law of the heart?
Common wall of myocardium separating the right and left atria.
What is the Interatrial septum?