The simple drawing method of the heart is introduced in detail as follows:

1. Point 1: The heart is one of the most important organs of the human body and one of the most complex structures. Also a muscular organ, the heart pumps its blood through the blood vessels in the circulatory system during most exercise. Start by drawing the base of the heart using a long curved line (with a twist).

2. Second point: Because the heart is divided into several parts of different sizes, draw the upper left corner of the heart first. Draw an irregularly shaped oval in the upper left corner of the base of the heart you just drew. Then draw several shorter curves on the right side.

3. Point 3: The heart has many different chambers and tubular structures used to pump blood in and out. Next the main part of these tubes, called the aorta, will be drawn. Use some curved lines to draw a small tube from the upper left corner of the heart. Then, for the aorta, we're going to use more circular wire for another section that has two smaller tubes extending from it. Draw another thick pipe coming out from the right side.

4. Point 4: After drawing the outline of the heart, draw some details to make the heart look more realistic. Use some short thick lines (thick at the head of the branch and light at the tail). Each vein starts as a single line and then branches into more. Three different sized branches of these veins will be added throughout the heart.

5. Point 5: Next add some curved lines along the pipe of the heart, and add more lines around most of the inner perimeter of the outline. Finally, various shades of pink were used to color the fleshy appearance of the various parts of the heart.