Diagram of Heart (original) (raw)
Last Updated : 23 Jul, 2025
The **diagram of the heart with labelling shows its various chambers, valves, and major blood vessels, that help in understanding its structure and function. The human heart is a muscular organ that pumps blood throughout the body. The diagram of heart class 10 is an important topic in the biology syllabus. It is also frequently asked in class 12 examinations. In this article, we will study the heart diagram and its structure in brief.
Table of Content
Heart Diagram
Below is a well-labelled diagram of the human heart:
Diagram of Heart
Heart Anatomy
The diagram of heart clearly shows the human heart anatomy. The human heart consists of:
- The human heart is made of four chambers:
- **Right Atrium: Receives deoxygenated blood from the body.
- **Right Ventricle: Pumps deoxygenated blood to the lungs.
- **Left Atrium: Receives oxygenated blood from the lungs.
- **Left Ventricle: Pumps oxygenated blood to the body.
- The heart has 4 valves separating chambers:
- **Tricuspid Valve: Prevents backflow of blood from the right ventricle to the right atrium.
- **Pulmonary Valve: Controls blood flow from the right ventricle to the pulmonary artery.
- **Mitral Valve: Prevents backflow of blood from the left ventricle to the left atrium.
- **Aortic Valve: Controls blood flow from the left ventricle to the aorta.
- The wall of the heart is made up of three layers:
- **Pericardium: Protects and anchors the heart.
- **Myocardium: Contracts to pump blood.
- **Endocardium: Provides a smooth lining for chambers and valves.
- The compartments of the human heart:
- **Right Atrium and Ventricle: Handle deoxygenated blood.
- **Left Atrium and Ventricle: Handle oxygenated blood.
- Major Blood Vessels of heart:
- **Aorta: Distributes oxygenated blood to the body.
- **Pulmonary Artery: Carries deoxygenated blood to the lungs.
- **Pulmonary Veins: Bring oxygenated blood back from the lungs.
- **Vena Cavae (superior and inferior): Return deoxygenated blood from the body to the heart.
Conclusion - Heart Diagram
In conclusion, diagram of heart shows that the heart has four chambers (left atrium, left ventricle, right atrium, and right ventricle) along with the three major blood vessels (aorta, pulmonary artery, and vena cava). This illustrative diagarm of heart with labelling will help you get a clear idea of the structure of heart.
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