In this article we will discuss about the origin of the frog heart beat with the help of suitable diagram. By separating atria from the ventricles of excised hearts, William Harvey in 1628 had shown that the atrial rhythm was higher than the ventricular rhythm. Keith and Flack (1907) have described that from the S.A. node the heart beat first [...]
The upcoming discussion will update you about the differences between Frog and Toad. Difference # Frog: 1. Frog mostly lives in water but comes to land for feeding. 2. Frog is diurnal. 3. Frog lays egg in a mass. 4. Head is triangular. 5. Body is Oliver-brown with dark spots. 6. Skin is moist and smooth. It has numerous mucous [...]
In this article we will discuss about the circulatory system of toad with the help of diagram. Circulatory or vascular system is the transport system by which materials such as food, oxygen and wastes are carried from one part of the body to other parts. The conveying medium is a liquid called blood. This is forced by a central pumping [...]