The top parts are called atriums and below them are the ventricles. The left & right sides of the heart must be examined at your own perspective (left = right, right = left).
In your heart, the top two hollow sections are called atrium and the lower two are ventricles.
The term for the 4 sections of the heart muscle is the cardiac muscle.
Sections of the lungs are called lobes. The right lung has 3 lobes and the left lung has two, which allows room for the heart.
The left ventricle and the right ventricle. In a human, the heart is tilted in such a way that the right ventricle is closer to the chest, and the left ventricle is behind it.
veins and arteries
The 20 sections of the earth's crust is called plates
The two sections of a shark are called the elasmobranchs.
veins and arteries
Each of the four sections are called quadrants.
The human heart is most often divided into 4 pieces called chambers 2 parts
they are called sectors :)
a state is divided into sections, each called county