4
It contains 4 chambers
the human heart contains four chambers and it is the ventricles (the two lower chambers) that do the pumping
There are four chambers in a human heart.
It has 4 chambers in the human heart
The human heart has four chambers. The atria are the upper chambers, and the ventricles are the lower chambers.
There's 4 heart chambers in a human, which is a mammle
Human and mammalian hearts have 4 chambers .
four
Four
Grasshoppers have an open circulatory system that contains a heart with 4 chambers. Unlike a human's 4 chambered heart, the grasshopper's heart pumps the blood to their head where it flows openly through their body.
There are four chambers in the human heart. There are two atria (the two upper chambers) and two ventricles (the two lower chambers).
The human heart has four chambers connected by valves. We have 2 smaller chambers on the upper half of our heart and two larger chambers on the bottom of our heart. The smaller chambers are called atria; the larger chambers are called ventricles. So we refer to these chambers as right and left atrium, and right and left ventricle.