how many chambers does a mammalian heart have
A Human's Heart. Like the human heart, the chicken heart has four chambers - a right atrium and ventricle which receives deoxygenated blood from the body and sends it to the lungs and a left atrium and ventricle which receives oxygenated blood from the lungs and sends it to the body. Birds have a much higher metabolic rate than humans. The average body temperature of a chicken is 41-45 degrees C, compared to a human's average body temperature of 37 degrees C. The pulse rate of a chicken can reach as high as 400 beats/min.