The Electrical Grid (Conduction System)
The heart's natural physiological pacemaker.
What is the SA (sinoatrial) Node?
The largest artery in the human body.
What is the Aorta?
The number of ventricles found in the human heart.
What is two?
This system branch increases the heart rate.
What is the Sympathetic Nervous System?
The "bottom" or tip of the heart.
What is the Apex?
This node is the uppermost node, located in the upper right atrium.
These vessels carry unoxygenated blood to the lungs.
What are the Pulmonary Arteries?
Another name for the bicuspid valve.
What is the Mitral Valve?
This specific nerve of the parasympathetic system decreases the heart rate.
What is the Vagus Nerve?
This artery is located behind the knee.
What is the Popliteal artery?
The impulse travels to this location immediately after leaving the SA node.
What is the AV (atrioventricular) Node?
This side of the heart carries unoxygenated blood.
What is the Right Side?
This valve is found between the right atrium and right ventricle.
What is the Tricuspid Valve?
The cardiac cycle phase when the heart is contracting.
What is Systole?
The fluid-filled sac that surrounds the heart.
What is the pericardium?
These fibers are stimulated last, causing the ventricles to contract.
What are the Purkinje fibers?
These vessels have valves and carry blood back to the heart.
What are Veins?
The main function of these two chambers is receiving blood.
What are the Atria?
The resting and filling phase of the cardiac cycle.
What is Diastole?
This blowing sound is heart on auscultation.
What is a Murmur?
This is the specific location of the Bundle Branches.
What is the Septum?
Coronary circulation describes blood flow through this specific organ.
What is the Heart?
These specific valves are known as "semilunar" valves.
What are the Pulmonary and Aortic valves?
The average number of times a human heart beats per minute?
72
This is the name for the middle area of the chest that contains the heart and trachea.
What is the Mediastinum?