Diagram of Heart

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.

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.

FAQs on Diagram of Heart

What is the Main Function of Heart?

The primary function of heart is to pump blood throughout the entire body. It transports oxygen and nutrients to the tissues and removes carbon dioxide and waste from the blood.

What is the Heart Made of?

The heart is primarily made of muscle tissue called cardiac muscle. This specialized muscle is very strong and able to contract rhythmically without getting tired.

Is the Heart a Muscle or an Organ?

The heart is a hollow muscular organ about the size of a closed fist.

What Organ System is the heart in?

The heart is part of the circulatory system, also known as the cardiovascular system. This system includes the heart, blood vessels (arteries, veins, and capillaries), and blood.

What is the Structure of Heart Diagram?

The structure of a heart diagram includes four chambers (two atria and two ventricles), four valves, three layers (pericardium, myocardium, endocardium), and major blood vessels like the aorta, pulmonary artery, pulmonary veins, and vena cavae.

Where can I Find the Labelled Diagram of Heart?

You can find the labelled diagram of heart at the top of this article.