Which term is used to refer to the obstruction of blood flow?

The term that refers to the obstruction of blood flow is ischemia. Ischemia occurs when there is insufficient blood supply to a tissue, leading to a shortage of oxygen and nutrients needed for cellular metabolism. This condition can result from various factors, such as blood clots, arterial narrowing, or external pressure on blood vessels, which ultimately impairs the proper functioning of tissues and organs.

Recognizing ischemia is crucial in medical contexts because it can lead to severe conditions, including tissue damage and, in more serious cases, organ failure if not resolved promptly. Understanding this concept is foundational in pathophysiology, as it highlights the critical relationship between blood flow and overall health.