Which of the following is characterized by a lack of oxygen supply to tissues?

The term that accurately describes a lack of oxygen supply to tissues is hypoxia. Hypoxia can result from various conditions that affect oxygen delivery or utilization in the body, such as respiratory diseases, anemia, or environmental factors like high altitudes. When tissues do not receive enough oxygen, they cannot perform their essential functions, which can lead to cellular damage and dysfunction.

Aspiration refers to the inhalation of foreign material into the lungs, which does not directly address oxygen supply to tissues. Hypercapnia is the condition characterized by an excess of carbon dioxide in the bloodstream, often resulting from inadequate ventilation, but it is not primarily about oxygen deprivation. Anemia describes a deficiency in red blood cells or hemoglobin, which can lead to decreased oxygen transport in the blood, but the term specifically pertains to blood characteristics rather than immediate tissue oxygen levels. Therefore, hypoxia is the most precise term for describing a condition where tissues are deprived of adequate oxygen supply.