Capillaries are the tiny tubes that carry blood. These vessel connect small arteries to small veins, and are the site of gas exchange.
The tiny tubes that carry blood are the capillaries. Capillaries connect arteries and veins.
Capillaries are the tiny tubes that carry blood. These tubes connect arteries and veins.
Capillaries are the tiniest of the blood vessels. They connect arteries and veins.
Capillaries are the smallest of the blood vessels, the tubes that carry blood. They connect arteries and veins.
There are millions of the tiny tubes in each of the kidney to carry blood and other nutrients both inside and outside of the kidney. The artery basically divides into many tiny blood vessels throughout the kidney.
Capillaries are the tiniest blood vessels. They are the site of gas exchange and connect veins and arteries.
The tubes are called capillaries.All sorts of tubes ("vessels") carry blood around the body, but the smallest are known as "capillaries", taken from Latin capillaris ("of hair", since capillaries are as thin as hairs).The smallest of blood vessels are capillaries.
Capillary
There are millions of the tiny tubes in each of the kidney to carry blood and other nutrients both inside and outside of the kidney. The artery basically divides into many tiny blood vessels throughout the kidney.
xylem \
Tubes in the kidney. I'm not sure what they are called, though.
ducts