heart basics
how many chambers ?!
4
This node acts as the heart’s natural pacemaker.
SA node!
This condition means a resting heart rate above 100 BPM.
What is tachycardia?
These upper chambers receive blood returning to the heart.
atria
The P wave on an EKG represents this event.
What is atrial depolarization (atria contract)?
his condition means a resting heart rate below 60 BPM.
bradycardia
The heart sits slightly tilted to the left, making this lung smaller.
left lung
These lower chambers pump blood out of the heart.
What are the ventricles?
The QRS complex represents this.
What is ventricular depolarization (ventricles contract)?
In this dangerous rhythm, the atria and ventricles contract out of sync.
fibrillation
The most superior portion of the heart is called this.
base
This side of the heart is thicker because it pumps blood to the entire body.
left!!
The most inferior portion of the heart is called this.
apex
These are called the “great vessels” because of their large lumen.
the aorta, pulmonary artery, pulmonary vein, and vena cava?