CP Cardiac Flashcards
Which node is found between the atria and the ventricle near the septum?
AV
Baroceptors and chemoceptors send signals to the cardiac center in the Pons which initiates sympathetic impulses to increase heart rate T or F
True
What is Angina Pectoris
Chest pain or discomfort cause by poor coronary circulation
Which vein contains o2 blood
Pulmonary vein
Another name for mitral valve
Left atrioventricular valve
QRS complex represents
Ventricular depolorization
T or F All chambers of the heart ate in diastole at the same time for about half the duration of a normal cardiac cycle
True
The fibrous pericardial sac is lined with [_____] membrane
Serous
P wave represents
Atrial depolorization
Another name for tricuspid valve
Right atrioventricular valve
Systole is when
The heart contracts
Diastole is when
The heart fills or relaxes
What semilunar valve separates the left ventricle and aorta
Aortic valve
T or F most of the blood that is ejected from the ventricles enters the ventricles during atrial systole
False
Where does the heartbeat originate
SA node
Oxygenated blood from the lungs enters the heart through the
Left atria
Stroke volume is
The amount of blood pumped out of the heart with each contraction
Where is the SA node
Right atrium
Where is the bundle of his
Spreading down the septum
Where are the perjunke fibers
Spread through the ventricles
What is the ST segment
A rest period. When the ventricles are finished depolorizing and they are about to repolorize
What is the PR interval
Delay that allows the ventricles to fill with blood before ventricular depolorization
What is the R-R interval
Patients heartrate/beat
What is congestive heart failure and a few signs of it
When the cardiac muscles show decreased ability. Enlarged heart, decreased EF, pulmonary rules.
What is coronary artery disease and signs.
Buildup of plaque which results in the narrowing of arteries. High cholesterol and triglycerides
What is acute myocardial infarction and its signs
Heart muscle dying. Radiating chest pain going down arm, diaphoresis(sweating), nausea, slow breathing
What is a right to left shunt
A shunt that allows directly bloodflow from the right side to the left side of the heart bypassing the lungs. This circulates less oxygenated blood thru body.
What is the lca
Left coronary artery
What is the lad
Left anterior descending
What is the Cx or LCx
Left circumflex
What is the RCA
Right coronary artery
Depolorization is when the heart is
Contracting
Repolorization is when the heart is
Relaxing or filling
Where is the LAD coronary artery
Anterior and septal portion of the left ventricle
Where is the Cx coronary artery
Lateral wall of left ventricle
Where is the RCA
Around septal wall to posterior heart
What is arrhythmia
Irregular heart beat
What is bradycardia
Slower than normal heart rate
What is tachycardia
Faster than normal heart rate
How to multiply stroke volume
CO/HR
What does CO stand for
Cardiac output
What is CI
Cardiac index
What does EDV stand for
End diastolic volume
How to calculate EDV
SV/EF
What happens during depolorization
Contraction
What happens during repolorization
Relaxation or filling
What is ESV
End systolic volume
How to calculate ESV
EDV-SV
How to calculate EF
EF= EDC-ESC/EDC x 100
What dies PFR stand for
Peak emptying rate
What does MPTT stand for
Mean pulmonary transit time
What does the P wave show
Atrial depolorization
What does the PR interval show
Time it takes electrical impulse to reach ventricles and initiate depolorization
What does the ST segment show
Completion of ventricular depolorization and beginning of ventricular repolorization