The main shape will be the basis for the left and right ventricles. Look up a picture, anatomical diagram, or X-ray image of a human heart for reference. If you’re unsure how to draw the irregular shape, lightly sketch a right triangle with the right angle in the upper right corner. Then, make an oval that touches each point of the triangle.

The right and left sides of the heart may look switched, but that’s because you’re drawing the heart from the opposite direction. If you like, draw a line between this bump and the main part of the heart. This line runs horizontally and can represent the tricuspid valve that separates the right atrium and ventricle.

Blood enters the right atrium through the superior vena cava.

Make the aorta wider than the superior vena cava for a more accurate drawing.

To determine which parts of the heart to make the darkest, decide where light is shining on the heart. The closer a part is to the light, the lighter it’ll be. If you’d like to make a colorful heart, shade with a burgundy or rusty red colored pencil. Try shading with a cross-hatching technique for a more illustrated look.

Who says the heart has to be colored anatomically? Consider adding a mystical or fantastical element to your drawing by coloring the heart all colors of the rainbow.

Tricuspid valve Aorta Superior vena cava Right and left atria Right and left ventricles Pulmonary arteries

Use a blue writing utensil to represent blood flowing through the superior vena cava, right atrium, and pulmonary arteries, and a red utensil to show blood going through the left atrium and aorta. [12] X Trustworthy Source Cleveland Clinic Educational website from one of the world’s leading hospitals Go to source Blood first flows into the right atrium, through the right ventricle, and then into the pulmonary valve to the lungs. The left atrium gets blood from the lungs, which flows to the left ventricle before going through the aorta to the rest of the body.