capillary walls are very thin, often a cell thick.
artery walls have two thick layers.
Two ways in which the structure of a capillary is adapted to its function is to encourage the exchange of oxygen. Another reason is to encourage the exchange of carbon dioxide.
The respiratory membrane is composed of three layers: the alveolar epithelium, the capillary endothelium, and their shared basement membrane. It is where gas exchange occurs in the lungs, with oxygen passing from the alveoli into the capillaries and carbon dioxide from the capillaries into the alveoli.
it has a single tunic- only the tunica interna
The wall of a capillary is extremely thin.
The respiratory membrane is formed by a combination of the walls of alveoli and walls of capillaries. It consists of type 1 alveolar cells, a basement membrane, capillary endothelium, alveolar epithelium and macrophages.
The capillary cell wall receives blood from the interstitial fluid.
Capillary walls receive oxygen in the lungs by a process known as diffusion.
they are one cell thick.
Epithelial Tissues?
Artery -> Arteriole -> Capillary -> Venule -> Vein
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.
A capillary has a very narrow lumn and very thin wall. These features maximize diffusion of nutrients, wastes, and oxygen.