Animal Physiology: Circulation and Excretion
Describe the evolutionary change in the pattern of heart among the vertebrates.
Right atrium of rabbit receives
Right atrium of the mammalian heart receives deoxygenated blood from anterior (superior) vena cava and posterior (inferior) vena cava. Thus, the right atrium has only deoxygenated blood. After systole, the deoxygenated blood from the right atrium goes to the lung for purification.
Describe the evolutionary change in the pattern of heart among the vertebrates.
Number of chambers in the heart of cockroach is
Heart of cockroach is
Single heart circuit occurs in:
Heart of frog differs from that of rabbit by presence of
Heart of fishes is
Heart of fish receive
In rabbit, oxygenated blood flows from
Heart of elephant is
Which animal has most mixing of oxygenated and deoxygenated blood in the ventricles?