Easy Steps to Draw Human Heart [Class 10 NCERT]
Write down each step with hand drawn labelled diagram.
Keep the steps simple & clear to learn.
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Answers
Here, are simple method to draw human heart.
1. Find a piece of paper and something to draw with. Start with the pulmonary veins. They will be to the lower left of the Aorta. There are two of them. Draw the top vein slightly smaller than the bottom vein.
2. Below the pulmonary veins, and slightly to the right, begin sketching the bottom of the inferior vena cava.
3. Begin sketching the base of the heart, including the right and left ventricles, and the right and left atriums. The pulmonary veins should be adjacent to the right atrium, and the inferior vena cava should be adjacent to the right atrium and right ventricle.
4. Change diagrams if needed. If the diagram that you are using is helping you to sketch the heart, you should continue to use the same diagram. If you are confused about where parts of the heart are, find a new diagram.
Heart is a pumping organ that pumps blood to the arteries so that it can reach to all parts of the body. The heart has different chambers to prevent the oxygen-rich blood from mixing with the blood containing carbon dioxide. Such seperation allows a highly efficient supply of oxygen to the body.
1. Oxygen-rich blood from the lungs come to the thin walled upper chamber of the heart on the left, the left artrium which relaxes when it is collecting this blood.
2. It then contracts, while the next chamber, the left ventricle relaxes, so that the blood is transferred to it, the muscular left ventricle contracts and the blood is pumped out to the body.
3. De-oxygenated blood comes from the body to the upper chamber on the right, the right atrium which relaxes. As the right artrium contracts, the corresponding lower chamber, the right ventricle, dilates and transfers blood to the right ventricle, which in turn pumps it to the lungs for oxygenation.
4. Since ventricles has thicker muscular walls, which pump blood into various organs .
5. Valves ensure that blood does not flow backwards when the atria or ventricles contract.
