Medical Terms
My Patient is "Tachy"
Referring to Tachycardic; Rapid Heart Rate
Describe the 3 tissue layers of the heart wall.
The Endocardium is the innermost layer of the heart wall. The Myocardium is the middle layer. The Epicardium is the outermost layer.
The scientific name of the hearts pacemaker.
The Sinoatrial Node (SA Node)
An adults normal sinus rhythm heart rate range
60-100 bpm
This is the volume of blood ejected from each ventricle with each beat
Stroke Volume
Known as "The Hearts Muscle", and responsible for the hearts pumping action
Myocardium
Explain what produces each of the two normal heart sounds, and explain the usual cause of a murmur.
The first heart sound, or "Lub", is the sound that occurs at the start of ventricular systole, and the closure of the AV Valves.
the second heart sound, or "Dup", occurs at the beginning of ventricular relaxation and sudden closure of the semilunar valves.
A murmur is caused by anything that disrupts the smooth flow of blood through the heart.
The names given to the contraction and relaxation phases of the cardiac system.
Systole is the contraction phase. Diastole is the relaxation phase.
This heart chamber receives blood from the lungs
Left Atrium
The left ventricle receives blood from the..
Left Atrium
Define "Epicardium"
A serous membrane that makes up the outermost layer of the heart
List 4 factors of Coronary Artery Disease that cannot be modified.
Age, Gender, Hereditary, and Body Type.
Upper - The Atrium
Lower - The Ventricle
These two valves are semilunar
The Aortic and Pulmonary Valves
This valve prevents blood from reentering the left ventricle
The Aortic Valve
A structure within the heart that acts like a "one way door" preventing fluid from flowing backward, while also controlling the flow of blood between the hearts chambers, and from the heart to the rest of the body.
Heart Valve
Compare the functions of the right and left chambers of the heart
The right side receives deoxygenated blood from the body and pumps it to the lungs for oxygenation. The left side receives oxygenated blood from the lungs and pumps it to the rest of the body.
The system that supplies blood to the Myocardium.
The Coronary Circulation
This component of the conduction system directly stimulates the ventricular walls.
Purkinje Fibers
This parasympathetic nerve slows heart rate
The Vagus Nerve
Volume of blood pumped by each ventricle in 1 minute. (The product of stroke volume and heart rate)
Cardiac Output
Name the valves at the entrance and exit of each ventricle, and identify the function of each.
Right Ventricle - Tricuspid and Pulmonary Valves
Left Ventricle - Mitral and Aortic Valves
The Tricuspid valve allows blood flow to the right ventricle. The Pulmonary valve directs blood to the lungs. The Mitral valve facilitates blood to the left ventricle. The Aortic valve directs oxygenated blood to the rest of the body
The system that exerts the main influence on the rate and strength of heart contractions
The Autonomic Nervous System
This is the order in which impulses travel through the heart
Sinoatrial Node, Atrioventricular Node, Bundle of His, Purkinje Fibers
This artery supplies blood to the left side of the heart
The Circumflex Artery