What is heart
Answer (1)
This is hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation. In vertebrates there are four chambers (as in humans), with two atria and two ventricles.
Good Luck!!!!
Comments (0)
Related Questions
What is the size of the heart?
24 Views
What is heart and how it works
41 Views
What is the another name of heart
35 Views





