Which procedure restores a normal heart rhythm when it's beating abnormally or too fast?

What is the electrical shift in muscle cells that causes them to contract called?

What is the term for the return of stimulated muscle to the resting state?

What is an abnormal heartbeat or an irregular rhythm in the heart called?

Which procedure uses sound waves to create images of the heart and nearby blood vessels?

What is the process of increasing the size, density, and shape of an organ or tissue called?

What term describes a disease or condition that arises spontaneously or for which the cause is unknown?

What is the study of the electrical activity of biological cells and tissues, including the heart?

What occurs when an organ or part of the body doesn't receive enough blood flow, leading to a lack of oxygen and nutrients?

What is the death of body tissue, which can occur when cells in the tissue die prematurely?

What is an extra sound in the heartbeat that occurs when blood flows through the heart in a turbulent way?

In an electrocardiogram (ECG), what is the line between two points on the ECG that are at the baseline amplitude called?

What is the continuous transmission and monitoring of electrical activity of the heart called?

What is the electrical signal captured by an electrode during an ECG called?