The capillary bed is an important component of the skin. The skin is also known as the "integument", or "integumentary system".
These capillary networks are supplied with blood by arterioles and drained of blood by venules. Each capillary is a tiny blood vessel whose walls are only one cell thick, which enables the exchange of oxygen, carbon dioxide, water, and salts between the blood flowing through the capillary vessels and the surrounding tissues.
To view the location of the capillary bed relative to the other key components of the skin see the diagram of the structure of the skin. This may be of particular interest to students of courses in massage, reflexology, beauty therapies, and other health science or clinical courses.