Fluid enters the lymphatic system (this system returns fluid and proteins to blood) by diffusing into lymph capillaries. This fluid is now called lymph and is kind of like interstitial fluid in composition. This movement of fluid is determined by net balance. It only diffuses into the capillaries if there isn't enough fluid there to begin with.
interstitial fluid
Found in spaces between cells and becomes lymph when it enters lymph capillaries.
Interstitial fluid
capillaries is where the exchange of materials occur such as; gases,nutrients, hormones, and so on.between the blood and the interstitial fluid.
There are only two substances found in between the blood cells and the capillaries. These are plasma and interstitial fluid.
Capillaries
The function of blood capillaries is to provide cellular, or tissue, respiration, provide nutrients and remove waste products. They are the tiny blood vessels that are between the venules and arterioles and the interstitial space between cells.
Capillaries allow Glucose and oxygen to move out of the blood in the capillaries into interstitial fluid and into the cells. Fluid is exchanged between capillary blood and interstitial fluid.
The blood vessels in between arteries and veins are the capillaries. But, they do not link them together, rather, they both have openings, through their capillaries, into the interstitial space which is the space between the cells of the tissues of the body.
Alveoli are site of gas exchange. Actual diffusion of gases occurs at interstitial space between capillaries and alveolar cells.
Interstitial fluid is the liquid which surrounds the cells in the body. The function of intestitial fluid is to carry substances between the blood and the tissue cells. Substances passing out of the blood capillaries eg food,oxygen, pass through the interstitial fluid to reach the body cells. Substances produced by the cells eg carbon dioxide waste, pass through the tissue fluid to enter the blood capillaries. See: http://en.wikipedia.org/wiki/Interstitial_fluid
Interstitial fluid is the liquid which surrounds the cells in the body. The function of intestitial fluid is to carry substances between the blood and the tissue cells. Substances passing out of the blood capillaries eg food,oxygen, pass through the interstitial fluid to reach the body cells. Substances produced by the cells eg carbon dioxide waste, pass through the tissue fluid to enter the blood capillaries. See: http://en.wikipedia.org/wiki/Interstitial_fluid