Pulzálást
Pulzálást refers to the rhythmic expansion and contraction of arteries, caused by the force of blood being pumped from the heart. This pulsation is typically felt as a throbbing sensation in areas where arteries are close to the surface of the skin, such as the wrist (radial pulse) or the neck (carotid pulse). The heart's contraction, known as systole, forces blood into the arteries, causing them to stretch and widen. When the heart relaxes, in diastole, the arterial walls recoil, and the pulse wave continues to travel through the circulatory system. The rate of these pulsations, the pulse rate, is a vital sign that reflects the heart's activity and can be influenced by factors such as exercise, stress, temperature, and certain medical conditions. A normal resting pulse rate for adults typically falls between 60 and 100 beats per minute. Deviations from this range, either too fast (tachycardia) or too slow (bradycardia), can indicate underlying health issues. Assessing the pulse involves not only counting the rate but also noting its rhythm, strength, and character.