Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...

Medically reviewed by Richard N. Fogoros, MD Key Takeaways The right atrium collects deoxygenated blood and sends it to the lungs for oxygen.The electrical signal that makes the heart beat starts in ...

Mobitz type I, also known as the Wenckebach block, is a subtype of second-degree atrioventricular (AV) block. Mobitz type I is a type of conduction disorder, which happens when the electrical signals ...

The sinus of your heart has nothing to do with your nose as you might guess; it’s a structure in the right atrium where blood ...