Final answer:
Circulatory shock is a condition in which blood flow to an organ is insufficient to supply adequate oxygen and nutrients. This life-threatening condition can occur due to excessive blood loss or dehydration. It is characterized by decreased blood pressure, increased heart rate, and decreased urine output.
Step-by-step explanation:
A condition in which blood is held back or deprived from an organ is called circulatory shock. Circulatory shock is a life-threatening condition in which the circulatory system is unable to maintain blood flow to adequately supply sufficient oxygen and other nutrients to the tissues to maintain cellular metabolism. It can be caused by excessive loss of blood volume due to hemorrhage or dehydration, leading to decreased blood pressure, increased heart rate, and a fall in urine output.