The thickness of the capillaries is very thin, they are about one cell thick.
capillaries
The smallest blood vessels are the capillaries.
5- 10 microns in cross section and the capillary wall thickness is 0.59 - 0.67 micron
Capillaries are the smallest blood vessels in the body (in terms of diameter), measuring about 20 micrometres (or one cell) across.
continuous capillaries continuous capillaries
Much of the surface of each of the approximately 300 million alveoli in a human lung is a layer of simple epithelial tissue on a fine mesh of capillaries. Forming a membrane only the thickness of one cell, simple epithelium allows the passage of gases between the lungs and the capillaries.
Capillaries do not vary in thickness, they are very thin. The thin wall permits the exchange between the blood in the capillary and the adjacent tissue cells.
Capillaries are the structures that connect arteries to veins.
Capillaries The smallest of the blood vessels: capillaries.
Arteries "feed" the capillaries while veins drain the capillaries.
plmonary veins begin as capillaries and end as capillaries
Sinusoidal Capillaries