Question

what is internal structure of heart?

Answer 1

The internal structure of the heart consists of four hollow spaces, or chambers, divided by a tissue wall, called the cardiac septum. The flow of blood through the heart is regulated by four valves.......

Answer 2

Human heart is four chambered in order to prevent the mixing of oxygen rich blood and blood containing carbon dioxide. The upper 2 chambers are known as atria (singular :atrium ). Lower 2 chambers are known as ventricles. The walls of atria are thin and wall of ventricles are thick. All the 4 chambers are separated from each other by partition called septa. For the flow of blood from the left atrium to the left ventricles.,there is a bicuspid valve. Similarly there is a tricuspid valve between right atrium and right ventricles. These valves prevent backwards flow of the blood from ventricles to atria.





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