All of the tissues in your body receive same amount blood all time?

No, all of the tissues in the body do not receive the same amount of blood all the time. Blood flow is regulated by the body to meet the changing needs of different organs and tissues. For example, during exercise, blood flow is diverted to the muscles to meet the increased oxygen and nutrient demands of the muscle tissue. Similarly, when you digest a meal, blood flow is diverted to the digestive system to help with the absorption of nutrients.