The Circulatory System Diagram shows the heart, blood vessels, and organs working together to carry blood throughout the body. Arteries carry blood away from the heart whereas veins carry blood back to the heart. The circulatory system carries oxygen, essential nutrients, and hormones to cells. Contrary, it removes the waste products from the blood. In this article, we will learn about the human circulatory system with the help of a circulatory system diagram.
Table of Content
Human Circulatory System Diagram
The human circulatory system majorly includes the heart, blood vessels, and blood. Arteries carry oxygenated blood from the heart to the body and the veins bring deoxygenated blood back to the heart. Capillaries connect arteries and veins to perform the exchange of nutrients and waste materials between blood and body tissues. The proper circulatory system diagram labeled is given below:
What is the Human Circulatory System?
The human circulatory system is made up of arteries, veins, and capillaries with the heart. The heart pumps the blood through them. The main job of the circulatory system is to deliver the essential nutrients, minerals, and hormones to different parts of the human body. Additionally, it also helps to remove the waste materials from cells and tissues.
Circulatory System Characteristics
Here are some major features of the circulatory system as mentioned below.
- The human circulatory system includes four major components i.e. blood, the heart, blood vessels, and lymph.
- It works with two loops. One loop is for for oxygenated blood and another one for deoxygenated blood.
- The heart has four chambers including the two ventricles and two auricles.
- There is a vast network of blood vessels throughout the body that consists of the arteries, veins, and capillaries.
- The vessels carry out the oxygen and nutrients to the whole body parts and remove waste materials.
- If we lay out all the veins, arteries, and capillaries of a human body, it will cover around 100,000 kilometers. It is about eight times the Earth's diameter.
Read More: Human Circulatory System
Circulatory System Parts
There are four major organs present in the circulatory system. These organs have specific roles and functions as mentioned below.
Heart
- It is located slight towards the left in the thoracic region.
- The heart is enveloped by the pericardium.
- The human heart is separated into four chambers. They are two upper chambers called atria and the two lower chambers called as ventricles.
Read More: Structure and Functions of Heart
Blood
- Its primary role is to transport essential nutrients, hormones, minerals, and other vital substances throughout the body.
- The heart is the organ that is involve to pumping the blood to the various parts of the body.
- Human blood consists of blood cells, blood plasma, proteins, and essential minerals like sodium, potassium, and calcium.
Read More: Composition of Blood: Function and Types
Blood Vessels
- Arteries: Arteries are blood vessels that carry oxygenated blood from the heart to different body parts. They are thick and elastic and, branched into tiny vessels called as capillaries. The pulmonary arteries are the only arteries that carry the deoxygenated blood to the lungs.
- Veins: Veins carry deoxygenated blood back to the heart from different parts of the body. They are thin, flexible, and found closer to the skin's surface. The pulmonary and umbilical veins are exceptions. They carry oxygenated blood in the body.
Read More: Angiogenesis-Mechanisms, Types, Importance & Application
Lymphatic System
- The human circulatory system includes another fluid called lymph. It is also known as tissue fluid.
- The lymph is created by the lymphatic system that is a network of organs, nodes, and ducts.
- Lymph is a clear fluid made up of salts, proteins, and water. It carries digested food and absorbed fat to the spaces between cells in tissues.
- Unlike blood, lymph is not actively pumped. It flows passively through vessels.
Read More: Lymphatic System
Circulatory System Function
Here are the major functions of the circulatory system as mentioned below.
- It supports all organ systems.
- It carries blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body.
- It defends cells against pathogens.
- It also helps in the process of cell-to-cell communication.
- The components in the blood aid in repairing damaged tissue.
Conclusion - Circulatory System Diagram
In conclusion, the circulatory system diagram clearly demonstrates how the heart, blood vessels, and organs work together to circulate blood throughout the body. This dynamic circulatory system delivers oxygen, nutrients, and hormones to cells while also removing waste products like carbon dioxide. Understanding the details of the human circulatory system is essential for learning the functioning of the body and the vital role this system plays in maintaining the overall health and well-being.
Also Read: