Circulatory System | Blood Vessels | Veins | Venules | Human Heart | Blood Circulation | Science
I hope you liked our video.
This educational video explains about Blood Vessels. This will help them a lot in their daily routine.
Blood vessels are a crucial component of the circulatory system, responsible for transporting blood throughout the body. They come in various types, including arteries, veins, and capillaries. In this response, we will focus specifically on veins and their smaller counterparts called venules.
Veins are blood vessels that carry deoxygenated blood back to the heart from various parts of the body. Unlike arteries, which transport oxygenated blood away from the heart, veins have thinner walls and lower pressure. They are designed to withstand lower pressure because blood in veins is not pumped directly from the heart but rather pushed by surrounding muscles and valves.
Veins have several important functions in the circulatory system. Firstly, they collect deoxygenated blood from capillaries and venules in the body's tissues. This blood carries waste products, such as carbon dioxide, and metabolic byproducts that need to be eliminated. Veins then transport this blood back to the heart, where it will be sent to the lungs for oxygenation.
Venules, on the other hand, are small blood vessels that connect the capillaries to veins. They are considered the smallest branches of the venous system. Venules receive oxygen-depleted blood from capillaries and gradually merge to form larger veins. These merging venules contribute to the formation of veins, which become larger in size as they move closer to the heart.
Venules play a vital role in the exchange of fluids and substances between the blood and surrounding tissues. They allow the passage of white blood cells, fluids, and nutrients into the tissues while collecting waste products and carbon dioxide for removal. This exchange takes place in the capillaries, and the venules serve as the connection between the capillaries and the larger venous system.
Both veins and venules contain valves that prevent the backward flow of blood. These valves ensure that blood moves in one direction, towards the heart, and helps overcome the low pressure in the venous system. Valves are especially important in the lower extremities, where gravity can impede blood flow.
In summary, veins and venules are integral parts of the circulatory system responsible for returning deoxygenated blood from the body's tissues back to the heart. Veins have thinner walls and lower pressure compared to arteries, while venules connect capillaries to the larger venous system. Together, they play a crucial role in maintaining circulation and facilitating the exchange of substances between the blood and surrounding tissues.
Circulatory system
Parts of Circulatory system
Functions of the circulatory system
#bloodvessels #capillaries #heart #circulatorysystem #humancirculatorysystem #circulation #blood #nerves #science
Welcome to Tutway, a unique platform where learning is fun!
Let's break away from our perception that adopting new learning concepts is challenging. You will find our website & youtube channel very user-friendly and interactive to gain knowledge. We have brought a programme that covers the crucial ideas and makes learning more stable that stimulates the critical thinking of the young learners !
Site: www.tutway.com/
Facebook: / tutway
Instagram: /
Circulatory System | Blood Vessels | Veins | Venules | Human Heart | Blood Circulation | Science
Blood vessels, Capillaries, circulatory system, circulatory system in detail, human circulatory system, the circulatory system, heart, functions of circulatory system, human circulatory system class, cardiovascular system, circulatory system structure, parts and functions of the circulatory system, easy circulatory system explain, circulatory system facts, circulatory system, circulatory system structure and function, circulatory system: anatomy and function
Негізгі бет Circulatory System | Blood Vessels | Veins | Venules | Human Heart | Blood Circulation | Science
Пікірлер