Mean Arterial Pressure is the Average Blood Pressure (bp) in the artery at the point of a bp measurement.
MAP is considered the blood perfusion pressure felt by the body's organs. MAP greater than 60 mmHg is considered sufficient pressure to sustain health in the average person.
If MAP falls significantly below 60 mmHg for an appreciable time, the organs may not receive sufficient blood flow, and may become ischemic (a local anemia).