Septic arthritis is a rather rare but important disease characterized by inflammation of a synovial membrane with purulent effusion into the joint capsule, usually due to bacterial infection. It typically affects monoarticular joints.
Scientists estimate the volume of blood in a human body to be approximately 7 percent of body weight. An average adult body with a weight of 150 to 180 pounds will contain approximately 4.7 to 5.5 liters (1.2 to 1.5 gallons) of blood. An average child with a body weight of 80 pounds will have approximately half the amount of blood as an adult. Blood carries out many critical functions in the body.
1 An average heart pumps about 2.4 ounces (70 milliliters) of blood per beat of heart. 2  If 72 beats occur per minute, then about 1.3 gallons (5 Liters) of blood is pumped per minute. 3  About 1,900 gallons (7,200 Liters) of blood is pumped per day.