Blood Capillaries are made of :-a)Endothelium and thin coat of connect...
Capillaries are much thinner than arteries and veins, because their walls are made up of only a single layer of endothelial cells, the flat cells that line all blood vessels......
Blood Capillaries are made of :-a)Endothelium and thin coat of connect...
Blood Capillaries are made of Only endothelium. The endothelium is the innermost layer of blood vessels, including capillaries. It is a thin layer of flattened cells that line the lumen of the capillaries. The endothelial cells have a unique structure that enables them to regulate the exchange of substances between the blood and the surrounding tissues.
Structure of Endothelium
The endothelium is composed of a single layer of flattened cells that are tightly packed together. These cells are held together by tight junctions, which prevent the leakage of fluid and molecules between the cells. Endothelial cells have a unique structure that enables them to regulate the exchange of substances between the blood and the surrounding tissues.
Functions of Endothelium
The endothelium performs several important functions, including:
1. Regulating the exchange of substances between the blood and the surrounding tissues.
2. Producing and releasing substances that regulate blood flow, such as nitric oxide.
3. Maintaining the integrity of the blood vessel wall by producing substances that prevent blood clots from forming.
4. Regulating the growth and repair of blood vessels.
Conclusion
In conclusion, blood capillaries are made of only endothelium which is the innermost layer of blood vessels, including capillaries. The endothelium performs several important functions, including regulating the exchange of substances between the blood and the surrounding tissues, producing and releasing substances that regulate blood flow, maintaining the integrity of the blood vessel wall, and regulating the growth and repair of blood vessels.
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