you're pretty close. the term ' ischemia ' refers to decreased oxygen delivery to various tissues. decreased blood flow can contribute to ischemia (since blood delivers oxygen) but ischemia can occur even with adequate blood flow. for example if something about your blood reduces its ability to carry oxygen molecules--such as anemia. ischemia can occur to any tissue. a few of the more-common types of ischemia are cardiac ischemia intestinal ischemia and even hip bone ischemia (also called avascular necrosis ). prolonged lack of oxygen to the tissue will cause the tissue to die. this is called 'infarction. ' in the case of the heart a prolonged lack of oxygen to the tissue will cause a heart attack or 'myocardial infarction. ' even brain tissue will die if it fails to receive enough oxygen. i hope this answers your question. wishing you well!
decreased blood flow to tissues is called ischemia?