What term describes a tissue or organ deprived of its normal blood supply?

The term that describes a tissue or organ deprived of its normal blood supply is ischemic. Ischemia occurs when there is a reduction in blood flow, which ultimately leads to a decrease in the supply of oxygen and nutrients necessary for cellular metabolism and function. This lack of adequate blood flow can result from various conditions, such as atherosclerosis, embolism, or arterial blockages, and can cause tissue damage if prolonged.

Understanding ischemia is crucial in clinical settings, particularly in ophthalmology, where conditions like retinal artery occlusion can lead to significant vision loss. Recognizing the signs and symptoms of ischemia can help in early identification and intervention to restore blood flow and prevent further tissue damage.

The other terms have specific meanings but do not describe the state of being deprived of blood supply. Necrotic refers to tissue that has died due to prolonged ischemia or infection, while hematoma refers to localized bleeding outside of blood vessels. Infarcted is related to an area of necrosis caused specifically by ischemia, but it describes the state after the tissue has already suffered damage due to loss of blood supply. In contrast, ischemia is the process that leads to such outcomes.