Layers of the Heart
The sac that encloses the heart
What is the pericardium?
Deoxygenated blood returns to the heart by what?
What are the superior and inferior vena cava?
It initiates and propagates each heart rate
What is the sinoatrial node?
Outermost layer of the heart
What is the epicardium?
Blood enters the the right ventricle from the right atrium using the
What is the tricuspid valve?
A delayed reaction that causes the atria to contract
What is the atrioventricular node?
The muscular layer of the heart
What is the myocardium?
Blood leaves the right ventricle by way of
What is the left and right pulmonary artery?
Conduction fibers that carry the impulse after the AV node
What is the bundle of His?
serous membrane that lines the four chambers of the heart and its valves and is continuous with the endothelium of the arteries and veins
endocardium
Prevents regurgitation of blood into the right ventricle
What is the pulmonary valve?
The right and left branch of the bundle of his carry impulse to these fibers
What are the Purkinje fibers?
The heart consists of four chambers
What is the right atrium, right ventricle, left atrium, and left ventricle
Blood flows from the right ventricle into
The Purkinje fibers send impulse to these parts of the heart
What is the right and left ventricles?