Cardiac Conduction System Flashcards
Cardiac anatomy & Physiology
What is the term for when the atria and ventricles contract
Systole
The more blood the ventricles are filled with, the more they stretch, and in turn, the harder the contract. What is this principle called?
Frank-Starling Principle
What is unique about pulmonary veins
They are the only veins that carry oxygenated blood
The amount of blood ejected from the ventricles in a single beat/contraction
Stroke volume
normal range for an adult’s heart rate
60-100 BPM
four valves of the heart
right side: Tricuspid and pulmonary
Left side: Mitral and aortic
When the atria are in systole the ventricles are in
Diastole
A visual representation of the electrical activity of the heart is called what?
An electrodiogram (ECG)
What part of the central nervous system regulates involuntary body functions like respiration and heartbeat
The automatic nervous system is responsible for maintaining involuntary body functions that are performed whether you are thinking about them or not
What part of the conduction system is responsible for setting the rate the heart beats at
The SA (sinoatrial) node
