Structure
The area of the thoracic cavity where the heart is located.
What is the mediastinum?
Functions to lubricate and reduce friction as the heart repeatedly contracts and relaxes.
What is pericardial fluid?
Located at the top of the right atrium. The natural pacemaker of the heart.
What is the sinoatrial node? (SA node)
The left atrium and left ventricle
What is the bicuspid (mitral) valve?
Medical term for heart attack
What is Myocardial infarction?
The outer most layer of the heart.
What is the epicardium?
Function as "one way" doors in the heart to regulate blood flow.
What are valves?
The electrical charge resulting from the firing of the SA node.
What is depolarization?
The pulmonary arteries and pulmonary veins.
What are the lungs?
The middle, muscular layer of the heart.
What is the myocardium?
Function by "Accumulating" blood and giving it "Away" to the ventricles.
What are atria?
How the electrical impulse from the SA node gets to the AV node.
What is the internodal pathway?
The inferior vena cava and the tricuspid valve.
What is the right atrium?
The medical term for high blood pressure.
What is hypertension?
The inner most lining of the heart.
What is the endocardium?
Functions by carrying blood from the head, neck, arms and chest to the right atrium.
What is the superior vena cava?
Located in the flood of the right atrium. It sends electrical impulse to it to the ventricles.
What is the atrioventricular node? (AV node)
The aortic valve and peripheral circulation.
What is the aorta?
Narrowing of the coronary arteries due to arteriosclerosis or atherosclerosis.
What is coronary artery disease? (CAD)
The fibrous membrane that encloses the heart.
What is the pericardium?
DAILY DOUBLE!!!!!
What are pulmonary arteries?
Located in the septum. They carry the impulse from the AV node to the ventricles
The left ventricle and the pulmonary arteries.
What is the pulmonary valve?
A fatty substance that may contribute to narrowing and hardening off vessel walls.
What is cholesterol?