After the discussion of the ultimate high fiber foods, letâs take a look at just what fiber is. First, it is important to note that fiber only occurs in fruits, vegetables, and grains. It is part of the cellular wall of these foods. Diets high in fiber may reduce the risk of obesity, heart disease, and diabetes.
The P wave in the ECG represents atrial depolarization, which results in atrial contraction.ormally the right atrium depolarizes slightly earlier than left atrium since the depolarization wave originates in the sinoatrial node, in the high right atrium and then travels to and through the left atrium.
It's this change that generates the electrical impulse that starts the heart's contraction. So we can associate the P wave of an ECG with the contraction of the atria. QRS Wave. If we move along the graph of the ECG, we see a small dip followed by a large spike and another dip. This series is usually considered together, and it's called the QRS wave.