Conduction system
Where does the electrical impulse initiate?
The SA node
What is another term for the SA node?
The pacemaker of the heart
What does the P wave represent?
The atrial depolarization
What is the cane shape called in the heart system?
The Aorta
What part of the heart receives the impulse signal?
AV node
What does AV stand for?
Atrioventricular Node
what does the P wave reflect?
The impulse moves from the SA node to the AV node in the right atrium.
What is the function of the left ventricle?
It is responsible for pumping oxygenated blood to the entire body.
What is the Bundle of His function ?
transmits the electrical impulse down to the bundle branches into the ventricles
what occurs during the diastole phase?
The heart is in rest mode and the atria fill with blood
What does the T wave represent?
The ventricular repolarization.
How many chamber is the heart divide into?
The heart is divided into 4 chambers: 2 atrial chambers, 2 ventricular chambers, and the septum is divided into the left and right sides of the heart.
What does the Purkinje fiber do?
It diffuses the signals through the ventricles, which causes them to contract, pumping the blood into the lungs and the rest of the body.
What phase is when the heart is contracting?
The systole phase
What does the Q in QRS represent?
The Q is a negative deflection and intraventricular septal depolarization.
Where do the impulses in the right and left branches reach?
The right branch is responsible for bringing the impulse to the right ventricle, and the left branch is responsible for sending the impulse to the left ventricle.
What is a ECG?
An ECG is a record or recording of the electrical impulses of the heart.
Repolarized Purkinje fibers.
What are the superior and inferior vena cava?
They are two large veins that carry deoxygenated blood from the upper and lower body back to the right atrium of the heart