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The capillaries are where the gas and nutrient exchanges occur. Because in a closed circulation system the blood can't go outside the vessels, it must go to the capillary beds where it is about 1 cell thick to have diffusion. Alveoli in lungs are covered by capillaries to allow gas exchange to happen. The capillaries are most abundant of all the blood vessels, because most part of your body requires oxygen, and capillaries are where it can be given to cells.
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Capillaries that have a incomplete lining are called?
continuous capillaries continuous capillaries
What structures connect the smallest arteries with the smallest veins?
Capillaries are the structures that connect arteries to veins.
What blood vessels surround the aveoli?
Capillaries The smallest of the blood vessels: capillaries.
What feeds the capillaries?
Arteries "feed" the capillaries while veins drain the capillaries.
Which veins open up into the capillaries?
plmonary veins begin as capillaries and end as capillaries
What are called leaky capillaries found in he one marrow?
Sinusoidal Capillaries
What smallest blood vessels only one cell thick?
The thin walled blood vessels are called capillaries.
Which capillaries are the most in the body?
continuous capillaries
The velocity of blood is slowest in the?
capillaries.
The smallest and most numerous blood vessels in the human body?
The smallest blood vessels are the capillaries.
Capillaries connect what?
Capillaries connect small arteries to small veins. Capillaries are the site of gas exchange.
Which vessels branch from arteries?
The branches from arteries are arterioles and then into capillaries.
