Venous system
Venous System
The Venous System (pronounced: /ˈviː.nəs ˈsɪs.təm/) is a part of the circulatory system that is responsible for carrying deoxygenated blood back to the heart. The venous system is composed of veins, which are blood vessels that carry blood towards the heart.
Etymology
The term "venous" is derived from the Latin word "vena", which means "vein". The term "system" comes from the Latin word "systema", which means "a whole compounded of several parts or members".
Related Terms
- Vein: A blood vessel that carries blood towards the heart.
- Vena Cava: The largest vein in the body, it carries deoxygenated blood from the body back to the heart.
- Capillaries: The smallest blood vessels, they connect the veins and arteries.
- Arteries: Blood vessels that carry oxygenated blood away from the heart.
- Circulatory System: The system of the body that circulates blood and lymph fluid around the body.
Structure of the Venous System
The venous system is composed of a network of veins, including the superficial veins, which are close to the surface of the body, and the deep veins, which are located deeper within the body. The venous system also includes the vena cava, which is the largest vein in the body.
Function of the Venous System
The primary function of the venous system is to return deoxygenated blood from the body back to the heart. The veins carry the blood from the capillaries to the heart, where it is then pumped to the lungs to be oxygenated.
Diseases of the Venous System
Diseases of the venous system can include venous insufficiency, deep vein thrombosis, and varicose veins. These conditions can lead to serious health complications if not treated promptly.
External links
- Medical encyclopedia article on Venous system
- Wikipedia's article - Venous system
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