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Tunica Externa

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Is capillary a blood vessel?

Yes, the capillaries are the smallest kind of blood vessel, that facilitate the movement of substances (like oxygen and glucose) in and out of the blood through their very thin walls.


What is the small blood vessel Small and thin and porous enough to exchange substances to tissue cell?

The circulatory system because the artery and the heart is their.


What is an extremely thin-walled blood vessel?

Capillaries are an extremely thin walled blood vessel - they are only one cell thick, which allows for the easy exchange of gases between the blood and the body tissues. Because they are so thin however, this also makes them very fragile.


What is the narrowest type of blood vessel called?

Vessels with extremely thin walls over wich molecules and atoms are transported are called "capillaries".


What is a tube that carries blood called?

Capillaries are the smallest of the blood vessels. Their thin walls and small size facilitate gas exchange with the body tissues.


Thin walled blood vessel connecting arteries and veins?

Arteries enter arterioles enter capillaries enter venules enter veins.


What blood vessels do the exchange of gases occur?

the blood vessel which allows gas exchange to occur is the capillaries


What type of vessel does nutrient exchange take place?

Nutrient exchange takes place in small blood vessels called capillaries, which have thin walls that allow for the exchange of gases, nutrients, and waste products between the blood and surrounding tissues.


What do you call a tube that blood travels through?

In general we call it a blood vessel. Those which carry blood away from the heart are arteries, those which take it back are veins, and the tiny, thin-walled tubes which are found in the organs and exchange substances with the cells are capillaries.


Which blood vessel does diffusion of oxygen and carbon dioxide take place?

Diffusion of oxygen and carbon dioxide takes place primarily in the capillaries, which are the smallest blood vessels in the body. Capillaries have thin walls that allow for the exchange of these gases between the bloodstream and the surrounding tissues.


A thin blood vessel only one blood cell wide?

The thin blood vessel you are referring to is a capillary. Capillaries are the smallest blood vessels in the body, and their walls are only one cell thick, allowing for the exchange of gases, nutrients, and waste products between the blood and tissues.


What are tiny blood vessel with very tiny walls that are the site of the exchange of useful and waste products?

Capillaries are the tiny, thin-walled blood vessels that are the site of the exchange of useful products and waste products. They allow diffusion of these materials across their thin walls.