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Cardio System

Vet Tech Cardio System Review

What is the outer layer of the heart called? Pericardium
Blood in the right atrium passes through what valve before traveling into the right ventricle? Right Atrioventricular Valve- also called the tricuspid valve
The SA Node which generates electrical impulses that trigger the beating of the heart is located where? Right Atrium
What is the process of generating electrical impulses from the SA Node? Depolarization
True or False: Systole happens when the heart relaxes and refills with blood. False, Diastole is when the heart relaxes and refills with blood. Systole happens when heart muscles contract and blood is ejected from the atria.
During which heart sound will you hear the closure of the mitral and tricuspid valves? Lub/S1
What is the amount of blood ejected with each cardiac contraction called? Stroke volume
If blood pressure is reduced and there is decreased stroke volume, what will happen to the heart rate? Heart rate will increase to compensate for decreased stroke volume.
Subclavian arteries branch off of what? The Aorta
What ensures that blood in the veins only travels towards the heart? Valves
What is the most common acquired cardiovascular disease in dogs? Canine Dilated Cardiomyopathy (DCM)
What is a common/normal arrhythmia? Sinus Arrhythmia
Which side of congestive heart failure is seen in cats with heartworm disease? Right Sided Heart Failure
On an ECG/EKG, the T wave corresponds with what? The repolarization of the ventricles
Where do electrical impulses travel to next after traveling through the AV node? Bundle of His